The collaboration between the late Bill Martin Jr and Michael Sampson began in 1978, and the duo created more than 30 books together over the next 25 years, penning children’s classics including Chicka Chicka 1, 2, 3 and Baby Bear, Baby Bear, What Do You See? Since Martin’s death in 2004, Sampson has carried on their literary tradition by introducing previously unpublished titles. Martin, who also wrote iconic best-sellers with the late Eric Carle, remains known as “America’s favorite children’s author,” and his work continues to inspire generations of young readers as new books from the Martin + Sampson Collection are released around the globe.