Chronology of human inventions.

"This book presents information about men and women spies throughout history as well as about the tools and equipment they used in espionage and intelligence service. You can also be an eyewitness to some of the world's most shadowy characters, and get the inside scoop on the ingenious gadgets that real-life spies have used to gather and send information without getting caught."--Publisher's description.

Presents information about men and women spies throughout history as well as about the tools and equipment they used in espionage and intelligence service.

A brief history of the Aztec Indians including their way of life, religion, and rulers.

As a page in his uncle's castle in thirteenth-century England, eleven-year-old Tobias records in his journal his experiences learning how to hunt, play games of skill, and behave in noble society. Includes notes on noblemen, castles, and feudalism.

Explore the crime lab with Forensics and discover how detectives use science to solve crimes. From the scene of the crime to a criminal's conviction, discover how the marks of blood, footprints, and fingerprints can lead the police to criminals. Find out how specialists can match trace evidence, such as a single hair found on a victim, to the murderer. Learn how famous crimes were solved and,like a true detective, find out whether it was arson, poison,or...

Facts and figures for the curious reader. Covers more than 30 fascinating "general knowledge" topics, including shapes, tides, the solar system, and the periodic table.

Tells the stories behind some of the world's greatest inventions, provides biographical notes on the inventors, and discusses the effect of each invention on society.

Various kinds of spiders, including the black widow, tarantula, and water spider, describe their physical characteristics, behavior, and habitats.

Documents some of the most devastating events in world history, including natural disasters, accidents, and plagues.