This book is part of a book series called Medikidz Explain .

This book has been graded for interest at 12+ years.

This is a picture book. A picture book uses pictures and text to tell the story. The number of words varies from zero ('wordless') to around 1k over 32 pages. Picture books are typically aimed at young readers (age 3-6) but can also be aimed at older children (7+). This book was published 2010 by American Cancer Society .