Emotions--including happiness, sadness, anger, fear, and calm--are described through the actions of a monster sorting them out.

Anna Llenas is an artist, author, and illustrator of books that talk about emotions, including The Color Monster, The Color Monster Goes to School, and Dr. Color Monster. In her work as an art therapist, she has been able to experience the power that art has to heal and transform people, individually and collectively. She lives in Spain.