Ivan Brunetti is an art teacher as well as an artist and a cartoonist. He has assigned drawing sets of 3 to his own students - but since they are college-aged, they have the extra challenge of making 25 sets of 3 things each. Ivan has published many acclaimed books for adults, including Cartooning: Philosophy and Practice. Wordplay, about compound words, was his first book for children. From a young age, Ivan loved playing with words and numbers. He also likes to play with his readers: look for all the 3s hidden throughout the book. Even today, Ivan still has to count to fall asleep. "Seeing the world as groups of numbers helps me make sense of things. And it never gets old because math has so many mysteries."