Description: The heart is a vital organ in the human body. Diagrams and full-color photos and illustrations, paired with accessible and informative text, showcase how the heart works and what its job is in the human body.
Review Quotes: --School Library Journal, Series Made Simple -- "Full of solid information ... These books are straightforward and comprehensive. Each includes colorful images. VERDICT: Suitable additions to school and public libraries".--Booklist -- "Accurate indeed ... Not your typical health texts".