As a figurative artist I can’t praise enough this book, exceptionally good for boosting imagination and creativity. Every draftsman knows that you need countless hours of drawing in order to be a better artist, it can be boring and it might be difficult to free your imagination. Not with this book: the idea is that you play a game with dices in order to find random new associations (for example emotions and actions). It challenges your ability every time, I bet it boosts creativity.
All the sections are very good: expressions and emotions, archetypes, costumes, anatomy crash course, antropomorph creatures, all this with a good dose of humour. Highly recommended.