In 1952, more than a decade before Where the Wild Things Are catapulted him into creative celebrity, the inexhaustibly brilliant Maurice Sendak began collaborating with beloved children’s book author Ruth Krauss, of whom Sendak is cited to have said, “Prior to the commercialization of children’s books, there was Ruth Krauss.” He illustrated eight of her books during her lifetime, as well as a posthumous edition of one of her earliest books in 2005, twelve years after Krauss died. Perhaps the most delightful of their collaborations is I’ll Be You and You Be Me (public library) — a heart-warming and witty ode to the empathic bonds of friendship and a celebration of children’s wild and whimsical imagination, originally published in 1954.

(From brainpickings.org)