The Guardian has a fascinating article: A mirror to every child’s life on black and ethnic minorities in children’s books. Malorie Blackman is the author of the piece and tells the tale of how she became an author and the problems with writing books as a person of color that are filled with characters of color.
I really appreciate that she has used the image of a mirror in her title, but it is equally important that white non-minority children read books with minorities in them. Books must be both mirrors and windows. Either way is beneficial and important.