After using this collection of biology books, I wish all my textbooks were as elegantly presented. These books are an exmple of the goals all textbooks should strife for. It's deceptively simple; super easy to read; and uses the best features of iBooks in jaw dropping ways.

very valuable to bio study

Downloaded several of these books. Very well organized and fluid. Illustrations come to life and almost jump out at you. Totally enthralled. Should appeal to all levels, not just high school. Have already used in class and will continue. Thank you to all involved!