Why do we do good things for one another? Do we still do good things if we get nothing in return? This reader explores the science, impulses, and reasons behind altruism in both humans and animals. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

From planets to animals to sunken treasure, things are discovered every day. This reader shows the ways in which people and explorers can find things they missed — or never even knew were gone! Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

Gold is valued by many cultures for its beauty and durability, but things can get ugly when gold is involved. This reader examines the long and troubled history of gold in different parts of the world. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

One of the most heavily populated cities in the world, Mumbai is the center of India's culture and technology. This reader takes you through a day in the life of an average Mumbai citizen as he experiences the public transportation, the workplace, the food, and the entertainment of Mumbai.

Would you live in space? How about in a cave? Would you mind living below a volcano? Explore the many dangerous and unusual places people can live all over (and outside of!) the world. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

People can lose battles, money, games, and even themselves. Read extraordinary stories about how loss challenges and changes us, from King Xerxes to the Bermuda Triangle. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

How do we decide where a country ends and begins? Come examine the ideas of borders and territory, on Earth and beyond. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

Can thinking happy thoughts help people overcome their fears? This reader examines the phenomenon of the placebo effect in helping people cope with health problems and fears. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

Mummies, coffins, tombs, elaborate funerals with fireworks... explore the many ways people deal with death. Use your unique code to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!

Nine readers based on topics in The Oxford Picture Dictionary with narratives on issues including society, study, and the workplace.