Rainbow Bridge is a book for parents to read to their children to let them know that they were adopted. It is intended to help children of all ages understand that they are special and that they were specifically chosen to be in their particular family. Even if the child is an infant, the book is meant to be read from the very beginning to allow the child's parents to get used to verbalizing the word adoption. The other message of the book is that families come in all different color combinations. Whether you are all the same color, or a combination of many, that is what makes your family special.