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How much do young readers know about their heart? From pumping to sending blood around the body, it's time to explore heart basics and more. Heart presents incredible facts and stories about how hearts work-and what happens when it doesn't! Includes table of contents, glossary of keywords, index, author biography, sidebars, and health tips. Activities for further learning Author/Illustrator biography Glossary of key words Index Table of contents How much do young readers know about their bodies? From circulatory and nervous systems to skeletal and muscular systems, it's time to explore body basics and more. Titles provide incredible facts and stories about how bodies work-and what happens when systems fail! Books include table of contents, glossary of keywords, index, author biography, sidebars, and health tips.