I thought this book was very boring but very informative. It is also a very long chapter book that uses higher vocabulary, therefore I think that it is suited for fifth graders and older. The entire book is in black and white, even the few pictures. What makes me like this book is that there are diagrams and charts throughout the book which make it a little more interesting. I know by looking through this book, it would not be something I would want to read as a fifth grader. This book however, does provide a lot of facts about this disease and helps the reader understand the topic more. ( )