Multiculturalism appears to be in terminal crisis. It has been blamed for undermining national identity, diluting social cohesion, creating ethnic ghettos and cultural fragmentation, providing fertile ground for Islamic radicalism, encouraging perverse political correctness, and restricting liberal freedoms of expression, amongst other things. The public debate over multiculturalism has polarised opinion amongst the general public, policy makers, and politicians. But how much real evidence, beyond tabloid headlines and anecdotes, exists for these claims? In this Very Short Introduction, Ali Rattansi considers the actual evidence from social science research to provide a balanced assessment of the truth and falsity of the charges against multiculturalism. Dispelling many myths in the process, he also warns about the dangers that lurk in an uncritical endorsement of multiculturalism, and concludes by arguing that it is time to move on to a form of interculturalism.

Viruses are big news. From pandemics such as HIV, swine flu, and SARS, we are constantly being bombarded with information about new lethal infections. In this Very Short Introduction Dorothy Crawford demonstrates how clever these entities really are. From their discovery and the unravelling of their intricate structures, Crawford demonstrates how these tiny parasites are by far the most abundant life forms on the planet. With up to two billion of them in each litre of sea water, viruses play a vital role in controlling the marine environment and are essential to the ocean's delicate ecosystem. Analyzing the threat of emerging virus infections, Crawford recounts stories of renowned killer viruses such as Ebola and rabies as well as the less known bat-borne Nipah and Hendra viruses. Pinpointing wild animals as the source of the most recent pandemics, she discusses the reasons behind the present increase in potentially fatal infections, as well as evidence suggesting that long term viruses can eventually lead to cancer. By examining our lifestyle in the 21st century, Crawford looks to the future to ask whether we can ever live in harmony with viruses, and considers the ways in which we may need to adapt to prevent emerging viruses with devastating consequences.

Numbers are integral to our everyday lives and feature in everything we do. In this Very Short Introduction Peter M. Higgins, the renowned mathematics writer, unravels the world of numbers; demonstrating its richness, and providing a comprehensive view of the idea of the number. Higgins paints a picture of the number world, considering how the modern number system matured over centuries. Explaining the various number types and showing how they behave, he introduces key concepts such as integers, fractions, real numbers, and imaginary numbers. By approaching the topic in a non-technical way and emphasising the basic principles and interactions of numbers with mathematics and science, Higgins also demonstrates the practical interactions and modern applications, such as encryption of confidential data on the internet.

With the World desperate to find energy sources that do not emit carbon gasses, nuclear power is back on the agenda and in the news, following the increasing cost of fossil fuels and concerns about the security of their future supply. However, the term 'nuclear power' causes anxiety in many people and there is confusion concerning the nature and extent of the associated risks. Here, Maxwell Irvine presents a concise introduction to the development of nuclear physics leading up to the emergence of the nuclear power industry. He discusses the nature of nuclear energy and deals with various aspects of public concern, considering the risks of nuclear safety, the cost of its development, and waste disposal. Dispelling some of the widespread confusion about nuclear energy, Irvine considers the relevance of nuclear power, the potential of nuclear fusion, and encourages informed debate about its potential.

From a single cell — a fertilized egg — comes an elephant, a fly, or a human. How does this astonishing feat happen? How does the egg 'know' what to become? How does it divide into the different cells, the separate tissues, the brain, the fingernail — every tiniest detail of the growing foetus? These are the questions that the field of developmental biology seeks to answer. It is an area that is closely linked to genetics, evolution, and molecular biology. The processes are deeply rooted in evolutionary history; the information is held in genes whose vital timings in switching on and off is orchestrated by a host of proteins expressed by other genes. Timing is of the essence. Here, the distinguished developmental biologist Lewis Wolpert gives a concise account of what we now know about development, discussing the first vital steps of growth, the patterning created by Hox genes and the development of form, embryonic stem cells, the timing of gene expression and its management, chemical signalling, and growth.

Computers have changed so much since the room-filling, bulky magnetic tape running monsters of the mid 20th century. They now form a vital part of most people's lives. And they are more ubiquitous than might be thought — you may have more than 30 computers in your home: not just the desktop and laptop but think of the television, the fridge, the microwave. But what is the basic nature of the modern computer? How does it work? How has it been possible to squeeze so much power into increasingly small machines? And what will the next generations of computers look like? In this Very Short Introduction, Darrel Ince looks at the basic concepts behind all computers; the changes in hardware and software that allowed computers to become so small and commonplace; the challenges produced by the computer revolution — especially whole new modes of cybercrime and security issues; the Internet and the advent of cloud computing; and the promise of whole new horizons opening up with quantum computing, and even computing using DNA.

Mark A. Noll presents a fresh and accessible history of Protestantism from the era of Martin Luther to the present day. Beginning with the founding of Lutheran, Reformed, Anglican, and Anabaptist churches in the sixteenth-century Reformation, he also considers the rise of other important Christian movements like Methodism and Pentecostalism. Focussing on worldwide developments, rather than just the familiar European and American histories, he considers the recent expansion of Protestant movements in Africa, China, India, and Latin America, emphasising the on-going and rapidly expanding story of Protestants worldwide. Noll examines the contributions from well-known figures including Martin Luther and John Calvin, along with many others, and explores why Protestant energies have flagged recently in the Western world yet expanded so dramatically elsewhere. Highlighting the key points of Protestant commonality including the message of Christian salvation, reliance on the Bible, and organization through personal initiative, he also explores the reasons for Protestantism's extraordinary diversity.

Paganism is an evocative word that, even today, conjures up deep-seated emotions and prejudices. Until recently, it was primarily a derogatory term used by Christians to describe the non-Christian cultures confronted and vanquished by their Churches. For some it evokes images of sacrifice and barbaric behaviour, while for others it symbolises a peace-loving, nature-worshipping spiritual relationship with the earth. This Very Short Introduction explores the meaning of paganism — through a chronological overview of the attitudes towards its practices and beliefs — from the ancient world through to the present day. Owen Davies largely looks at paganism through the eyes of the Christian world, and how, over the centuries, notions and representations of its nature were shaped by religious conflict, power struggles, colonialism, and scholarship. Despite the expansion of Christianity and Islam, Pagan cultures continue to exist around the world, whilst in the West new formations of paganism constitute one of the fastest-growing religions. Focussing on paganism in Europe, but exploring the nature of paganism globally, Davies looks at how Europeans discovered new cultures through colonial expansion, missionary work, and anthropological study. Contemporary social paganism can be a liberating and social force, and the idea of a global Pagan theology is now on the religious map.

In religious terms Pentecostalism was probably the most vibrant and rapidly-growing religious movement of the 20th century. Starting as a revivalistic and renewal movement within Christianity, it encircled the globe in less than 25 years and grew in North America and then in those parts of the world with the highest birth-rates. Characterised by speaking in tongues, miracles, television evangelism and megachurches, it is also noted for its small-group meetings, empowerment of individuals, liberation of women and humanitarian concerns. Without the financial and military support of the state (as was the case with communism), it flourished in almost every conceivable socio-political environment. Even in Europe, where religion most frequently appeared tired and out of date, Pentecostalism might draw large crowds or, within mainline Christian congregations, flourish in a more muted charismatic form. When these two forms are added together, Pentecostalism and neo-Pentecostalism are thought to account for around 450 million people. William K Kay outlines the origins and growth of Pentecostalism, looking at not only the theological aspects of the movement, but also the sociological influences of its political and humanitarian viewpoints.

Children's literature takes many forms — works adapted for children in antiquity, picture books and pop-ups — and now includes the latest online games and eBooks. This vast and amorphous subject is both intimately related to other areas of literary and cultural investigation but also has its own set of concerns, issues and challenges. From familiar authors including Beatrix Potter and Roald Dahl, classic books such as Pooh, Alice in Wonderland, and The Secret Garden, to modern works including Harry Potter and the Twilight series, thisVery Short Introduction provides an overview of the history of children's literature as it has developed in English, whilst at the same time introducing key debates, developments, and figures in the field. Raising questions about what shape the future of literature for children should take, and exploring the crossover with adult fiction, Reynolds shows that writing for children — whether on page or screen — has participated in shaping and directing ideas about culture, society and childhood.

The music of the medieval, Renaissance, and baroque periods have been repeatedly discarded and rediscovered ever since they were new. An interest in music of the past has been characteristic of a part of the musical world since the early 19th century. The revival of Gregorian chant in the early 19th century; the Cecilian movement in later 19th-century Germany seeking to immortalize Palestrina's music as a sound-ideal; Mendelssohn's revival of Bach: these are some of the efforts made in the past to restore still earlier music. In recent years this interest has taken on particular meaning, representing two specific trends: first, a rediscovery of little-known underappreciated repertories, and second, an effort to recover lost performing styles, with the conviction that such music will come to life anew with the right performance. Much has been gained in the 20th century from the study and revival of instruments, playing techniques, and repertories. In this VSI, Thomas Forrest Kelly frames chapters on the forms, techniques, and repertories practices of the medieval, Renaissance, and baroque periods with discussion of why old music has been and should be revived, as well as a short history of early music revivals.

This stimulating Very Short Introduction throws open the doors on a remarkably diverse musical genre, with a world-wide reach that goes far beyond America's shores to discuss folk music of every possible kind and in every corner of the globe. Written by award-winning ethnomusicologist Mark Slobin this is the first compact introduction to folk music that offers a truly global perspective. Slobin offers an extraordinarily generous portrait of folk music, one that embraces a Russian wedding near the Arctic Circle, a group song in a small rainforest village in Brazil, and an Uzbek dance tune in Afghanistan. He looks in detail at three poignant songs from three widely separated regions-northern Afghanistan, Jewish Eastern Europe, and the Anglo-American world-with musical notation and lyrics included. He goes on to sketch out the turbulent times of folk music today and tomorrow, confronting new possibilities, frameworks, and challenges. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Science Fiction has proved notoriously difficult to define. It has been explained as a combination of romance, science and prophecy; as a genre based on an imagined alternative to the reader's environment; and as a form of fantastic fiction and historical literature. It has also been argued that science fiction narratives are the most engaged, socially relevant, and responsive to the modern technological environment. This Very Short Introduction doesn't offer a history of science fiction, but instead ties examples of science fiction to different historical moments, in order to demonstrate how science fiction has evolved over time. David Seed looks not only at literature, but also at drama and poetry, as well as film. Examining recurrent themes in science fiction he looks at voyages into space, the concept of the alien and alternative social identities, the role of technology in science fiction, and its relation to time — in the past, present, and future.

If environmental protection is costly, how much should we spend on pollution control? Is it worth reducing pollution to zero, or should we accept some level of pollution because of the economic benefits associated with it? How can we assess the benefits that people get from a less-polluted atmosphere? In broad terms, environmental economics looks at how economic activity and policy affect the environment in which we live. Some production generates pollution, such as power station emissions causing acid rain and contributing to global warming, but household consumption decisions also affect the environment, where more consumption can mean more waste sent to polluting incinerators. However, pollution is not an inevitable consequence of economic activity — environmental policies can require polluting firms to clean up their emissions, and can encourage people to change their behaviour, through environmental taxes on polluting goods, for example. Generally, though, these measures will involve some costs, such as installing pollution control equipment. So there's a trade-off: a cleaner environment, but economic costs. In recent years, many economists have argued for greater use of incentive in the form of pollution charges and emissions trading rather than more traditional direct regulation of polluters. In this Very Short Introduction, Stephen Smith discusses environmental issues including pollution control, reducing environmental damage, and global climate change policies, answering questions about how we should balance environmental and economic considerations, and what form government policies should take. Including many illustrative case studies and examples he shows that this is an exciting field of economics, and one that is at the heart of many public debates and controversies.

Why are some countries rich and others poor? In 1500, the income differences were small, but they have grown dramatically since Columbus reached America. Since then, the interplay between geography, globalization, technological change, and economic policy has determined the wealth and poverty of nations. The industrial revolution was Britain's path breaking response to the challenge of globalization. Western Europe and North America joined Britain to form a club of rich nations by pursuing four polices-creating a national market by abolishing internal tariffs and investing in transportation, erecting an external tariff to protect their fledgling industries from British competition, banks to stabilize the currency and mobilize domestic savings for investment, and mass education to prepare people for industrial work. Together these countries pioneered new technologies that have made them ever richer. Before the Industrial Revolution, most of the world's manufacturing was done in Asia, but industries from Casablanca to Canton were destroyed by western competition in the nineteenth century, and Asia was transformed into 'underdeveloped countries' specializing in agriculture. The spread of economic development has been slow since modern technology was invented to fit the needs of rich countries and is ill adapted to the economic and geographical conditions of poor countries. A few countries — Japan, Soviet Russia, South Korea, Taiwan, and perhaps China — have, nonetheless, caught up with the West through creative responses to the technological challenge and with Big Push industrialization that has achieved rapid growth through investment coordination. Whether other countries can emulate the success of East Asia is a challenge for the future.

«Americans have come from every corner of the globe, and they have been brought together by a variety of historical processes-conquest, colonialism, the slave trade, territorial acquisition, and voluntary immigration. A thoughtful look at immigration, anti-immigration sentiments, and the motivations and experiences of the migrants themselves, this book offers a compact but wide-ranging look at one of America's hottest issues. Historian David Gerber begins by examining the many legal efforts to curb immigration and to define who is and is not an American, ranging from the Naturalization Law of 1795 (which applied only to «free-born white persons») to the Chinese Exclusion Act of 1882, the Emergency Quota Act of 1921, and the reform-minded Immigration and Nationality Act of 1965, which opened the door to millions of newcomers, the vast majority from Asia and Latin America. The book also looks at immigration from the perspective of the migrant-farmers and industrial workers, mechanics and domestics, highly trained professionals and small-business owners-who willingly pulled up stakes for the promise of a better life. Throughout, the book sheds light on the relationships between race and ethnicity in the life of these groups and in the formation of American society, and it stresses the marked continuities across waves of immigration and across different racial and ethnic groups. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.»

Late antiquity: decline or transformation, conflict or interaction? Late antiquity is the period (c.300 — c.800) in which barbarian invasions ended Roman Empire in Western Europe by the fifth century and Arab invasions ended Roman rule over the eastern and southern Mediterranean coasts by the seventh century. Asking 'what, where, and when' Gillian Clark presents an introduction to the concept of late antiquity and the events of its time. Not only a period of cultural clashes, political restructurings, and geographical controversies, Clark also demonstrates the sheer richness and diversity of religious life as well as the significant changes to trade, economy, archaeology, and towns. Encapsulating significant developments through vignettes, she reflects upon the period by asking the question How much can we recognise in the world of late antiquity?

Risks are everywhere. They come from many sources, including crime, diseases, accidents, terror, climate change, finance, and intimacy. They arise from our own acts and they are imposed on us. In this Very Short Introduction Fischhoff and Kadvany draw on both the sciences and humanities to show what all risks have in common. Do we care about losing money, health, reputation, or peace of mind? How much do we care about things happening now or in the future? To ourselves or to others? All risks require thinking hard about what matters to us before we make decisions about them based on past experience, scientific knowledge, and future uncertainties. Using conceptual frameworks such as decision theory and behavioural decision research, we examine the science and practice of creating measures of risk and look at how scientists apply probability by combining historical records, scientific theories, and expert judgement. Showing what science has learned about how people deal with risks, and applying these to diverse everyday examples, the authors demonstrate how we move from understanding a risk to making a choice in everyday life.