This fact-filled book comes with its own bird and a bee, cartoon characters whose responses and questions throughout echo those young readers might have as they dip into this information. The book is organized into 22 sections picturing widely diverse families of children and adults as illustrated by Emberley’s artwork rendered in color pencil and watercolor. In addition to the predictable topics, other subjects covered include “twins and more,” chromosomes and genes, “lots of kinds of love,” adoption, “okay and not okay touches,” and essential information about HIV. Harris and Emberley created the book for an age group desperately in need of such information due to the limited number of books about this subject for children of elementary school age. Harris and Emberley respect the ways children learn, what they want to know and how they want to get this information. In an opening section they report that science can change, not all scientists agree, there are questions without answers and there can be more than one answer to some questions. As they planned and prepared the book they talked with teachers, librarians, scientists, doctors, nurses, and clergy members. Readers with questions are encouraged to talk with their parent or someone in or more of these specializations. (Ages 7-10)