Aapo Ravantti Aapo Ravantti is a multi-talented artist from Lahti. In addition to illustrations for children’s books, he also works as a sound technician and musician. Ravantti’s educational background is in visual art and music technology. Illustrated books Aapo Ravantti What Is a Robot? 2022, Non-Fiction Related news 17.03.2022 Estonian rights sold for WHAT IS A ROBOT!