He is regarded by many as one of the best writers in contemporary children's literature, but his books deal with difficult topics such as child abuse, homelessness and disability.

BBC: Row over teen novel

"In addition to a black child owning dolls and other playthings that positively reflect their image, exposure to literature, art and other positive images will aid in the development of a healthy cultural awareness and appreciation, " she says.

CNN: Talking dolls challenge racial stereotypes