While some excellent children’s books are one-person projects, most of my favorite children’s books have separate author / illustrator. There is no indication t

While some excellent children’s books are one-person projects, most of my favorite children’s books have separate author / illustrator. There is no indication that they are less “serious”. You can find a large pile of terrible books with any possible authorship structure. I do get the sense however that picture books are usually better when the author and illustrator collaborate closely.