Norris presents an accessible description about dolphin behavior and the science involved in that study. Although I have a science background, I know little biology, and yet Norris clearly presents this work in terms I could understand, and that any thinking person will be comfortable with. I have since purchased other books by Norris on dolphins, and schedule snorkle trips everytime I visit the Islands. If you have seen the latest IMAX movie "Dolphins" (dedicated to Norris), now is the time to read the book!