Sandra Markle writes many nonfiction books for children.  Leukemia tells the story of two people with different types of blood cancer.  It follows each child through diagnosis and treatment.  Information is presented in easily understood text accompanied by full-color photos and micrographs – photos of individual cells.  The science behind the treatment is not overwhelming to the reader.  The book relates current procedures and technology.  It also includes an extensive list of resources for further information – books, websites, and addresses of foundations and programs.  Sandra Markle has done comprehensive research to present facts on this disease in an interesting and engaging format.  Other books she has written in this series are true survival stories of those with Bad Burns, Faulty Hearts, Lost Sight, Shattered Bones, and Wounded Brains.  Reading level is 6th grade.  Recommended addition to collection of medical information.