The book "People" by Peter Spier (1980) reads more like a graphic novel. The pictures are worth a thousand words. The text is simple, and the illustrations can launch great conversations on diversity.

Amazon link - https://www.amazon.com/People-Peter-Spier/dp/038513181X/

Some reviews indicate the themes may be for older children or adults. https://www.amazon.com/gp/customer-reviews/R39RS3BDDQSWLO/

The book may lend itself to many great conversations with parents.