Austin SCBWI

Almost always: no. The editor who purchases your picture book manuscript will ultimately choose the illustrator. Except in rare circumstances, it is seldom a good idea to collaborate with an illustrator. Illustrators are better off researching the market and submitting their portfolios for assignments. Don’t illustrate it yourself unless you are a professional. There is also no need to describe the illustrations in your submission. If your manuscript doesn’t come to life visually without your explaining it, then the writing probably needs work. If the story is intended to be told by the illustrations, then mention that briefly in your cover letter; don’t clutter the manuscript with explanations.