This book offers information for the first-time pet owner on the physical characteristics, selection, care, and feeding of guinea pigs.

This book explains what happens when you breathe in and breathe out and discusses how polluted air can cause breathing problems.

This book describes a well-balanced diet and explains how different foods do different jobs.

With colorful photographs and simple text, this book discusses how you hear, see, smell, touch, and taste and how your brain controls everything you do -- from playing games to laughing and reading.