I bought this book for myself. Being a marine life artist, I'm not embarrassed to admit that sometimes I do have trouble drawing marine animals. Drawing them in onto my canvas and getting them anatomically correct can be tricky. I saw this book on amazon and I must say IS worth every penny! Glad to give it a shot! Because of this book, I can now draw sea animals much better than I could before. I must thank the author for creating such a wonderful book. He makes it so EASY! I had no idea that drawing my subjects could become so easy...and FUN! The wonderful thing is this book contains 50 sea animals to learn to draw, which is GREAT! This is my first and only Learn to Draw 50 books, and I must say how much I recommend these for children and adults. There is no age limit. You're never to old to learn how to draw something...and an easy, easy way! This book is the way to go! I am so happy with this book! Now I will have no problems drawing anymore. This book is a lifesaver for me, and now I can draw so many kinds of sharks, whales, dolphins, rays, ocean fish, even squids and octopus! There is no other better book than this one anywhere! No other book will teach 50 animals, in a more easy way than this! Grab yourself a copy before they sell out!