Peter Gray 
Everyone Can Draw Monsters [PDF ebook] 

Whether they picture a three-eyed purple behemoth or a creepy creature with horns, this exciting book guides readers through creating their ideal gruesome monster. Using the different materials and drawing styles introduced, readers can make their monsters ready to jump off the page and start some mayhem. Step-by-step instruction and easy-to-follow language makes creating terrifying creatures fun and accessible for young artists of all skill levels.