A true book

Discusses the history, components, software, and uses of personal computers.

Discusses the smallest, most distant, and most mysterious planet in our solar system, its discovery, and its peculiar orbit.

Presents the history, rules, equipment, and positions of baseball, as well as a list of some of the best players of all time.

Presents an introduction to magic tricks, and provides instructions for nine simple magic tricks that can be done with water, air, and light.

Describes the physical characteristics, behavior, and life cycle of butterflies and moths.

Describes the physical characteristics, behavior, and life cycle of flies and discusses some of the different kinds.

Examines the reasons why animals are threatened with extinction and discusses ways to help prevent their loss.

Simply describes the functioning of the digestive system and explains the process of digestion.

Introduces the size, shape, colors, and stinging tentacles of jellyfish and examines their survival in the world's waters since before the age of the dinosaurs.

Describes the various parts of the human circulatory system and explains how and why blood is circulated throughout the body.