Rebecca Grabill ; illustrated by Ella Okstad. Dyan Sheldon ; illustrated by Ella Okstad. Rachel Morrisroe & [illustrated by] Ella Okstad illustrated by Ella Okstad. illustrated by Ella Okstad [illustrated by] Ella Okstad. Rebecca Elliott ; illustrated by Laurie Hamilton. Rebecca Kai Dotlich ; illustrated by Mike Lowery. [illustrated by] Ella Okstad Rebecca Otowa with illustrations by the author