A children's book from Pope Benedict! It is only currently available in Italian though:
The book is composed of passages taken mainly from the Pope’s Wednesday general audiences, and tells the tale of Jesus’ first friends and disciples. Its 48 pages are illustrated by Italian artist Franco Vignazia, and it features a prologue by Spanish priest Father Julian Carron.
I also found Joseph and Chico a while back; a biography of the pope written for children.