Again, consider the way the child takes in information is very important in considering books. Parents may want to begin with books that are more indirect. An even more indirect entry comes with the sharing of Peter Spier's People . The pages crowded with people who show the exciting variety present in the world. This wordless book is a great conversation starter.
Story is often one of the best ways to explain the adoption to a young child.
The metaphor of story removes the child a bit. They may enjoy the surface level of the story at first and later identify with ideas or characters. Keiko Kasza's A Mother for Choco is the story of a little bird who searches for a mother. He begins by trying to identify himself with animals who look like him, but the details are always wrong. Finally, he meets Mrs. Bear who doesn't look at all like him.