This paper investigates the visual and verbal representation of diversity in Australian early childhood picture books, focusing on those that have been shortlisted for the Children's Book Council of Australia (CBCA) Early Childhood Book of the Year award (2001-2020). Educators at all levels draw on award lists to help create their reading lists and build their library collections. For early childhood to kindergarten educators, these selections are principally picture books. Picture books are significant for the cultural messages and values they convey about society, and for helping children learn about their world. How diverse that world is impacts on a child's sense of belonging and inclusion. Using content analysis, this study demonstrates the extent to which the story worlds in the CBCA award winning early childhood picture books may be considered a source of diversity for young Australian readers.