This is the worst bio book I have ever read. There are not enough diagrams, and the author focuses too much on the history of discoveries as opposed to the actual discoveries. I wanted to rank this book a 0/5 but that was not an option. The book was so horrible that a majority of the time, I could not read it...I thought it was extremely dull and dry...And I normally love biology!!! My professor wanted us to use the Reece Biology book, but the department would not approve it, so we got stuck with this cr@p. If you're looking for a good biology textbook, this book is not for you. Compared to the Reece book, the Freeman book makes you feel like you are reading each definition on each page in the dictionary and are being forced to memorize it. I had the opportunity to read a chapter or two of the Reece book, and I can tell you that it is 1000X more interesting and readable than this Freeman book.