You have selected one of the designated books to read. You will now write a book review that expresses your motivation for selecting the particular book, the impression the book made on you, information from another external, reliable source that either corroborates or contradicts the book, and how or why this book will or will not impact you. See Content Criteria on page 4 for more details. Note that your additional source should be from a recent (within last 5 years), professional journal or website (NIH, CDC, etc.). Blogs, magazines, and newspapers are not considered professional resources. An external source is one that is not included.