Paul Maar was born in Schweinfurt , Bavaria, in 1937. After studying painting and art history in Stuttgart, he worked as a painter, stage designer, theater photographer and artist. Since 1976 he has been a freelance author and illustrator. The story-teller, inventor of verses, word- and letter-playing came to writing through illustrating. He is one of the most important children's books author in the German speaking countries and is one of the best-known contemporary authors on German stages. His award-winning and widely translated work encompasses various genres and children's literary genres: picture stories, books for first readers, poems, radio plays, books, plays and more than 40 novels.

Like no other Maar has influenced the German children literature. He knows the everyday life of children as well as their dream worlds. His stories are often about strange happenings. For this purpose, he has developed his own "symbolic language of fantastic irritations of everyday life", so the jury of the German Youth Literary Prize 1996.
Paul Maar lives in Bamberg.