Children's Book in Czech written by Daniel Rusar
Innsbruck, Austria.

Batika is a small boy who has to put up with a lot of things, mainly with mean kids at school who tease him about being different. But how different is he really from all other children who just want to have friends and fun, even when he has these tiny patches appearing all over his body? This is a story about finding strength in your (visible) differences and standing up for yourself.