So if you've always wanted to find out how porcupines really mate, how comedy can kill and -- that most essential piece of knowledge -- how long the longest recorded nose was, this is the book for you.

From the "New York Times" comes a thorough, authoritative, easy-to-use guide to a broad range of essential subjects.

More than 100 colorful photos are paired with kid-friendly and age-appropriate maps along with basic facts about each continent. This book will quickly become a favorite at storytime, bedtime, or any other time.

A discovery book for children, with illustrations and instructive chapters on light, animals, music, weather, soldiers, food, insects, ad infinitum.

The must-have book for boys from 8 to 80.

Describes the origins of over 400 everyday items, arranged in alphabetical order.

The contributors give ecological considerations prime importance, grouping behaviors into the settings where they are most likely to be assessed and treated. The volume offers a superb view of the clinical decision-making process.

This colossal compendium presents highlights of history of the 20th century - the biggest and most interesting events, people, crimes, disasters, inventions, discoveries, songs, the good, the bad, and the ugly.

Chronicles the events of the 20th century.