A Book About Eggs, Sperm, Birth, Babies, and Families. The Family Library series How does a baby begin? What makes a baby male or female? How is a baby born? Children have plenty of questions about reproduction and babies â€” and about sex and sexuality, too. IT'S SO AMAZING! provides the answers â€” with fun, accurate, comic-book-style artwork and a clear, lively text that reflects elementary-school children's interest in how things work, while giving them a healthy understanding of their bodies.