How does a baby begin and how is it born? How did I begin? Why are some parts of kids' bodies different from some parts of other kids' bodies? Most younger kids have questions about reproduction, babies, love, sex, and gender too. Some also have concerns. For over twenty years, It's So Amazing! has provided children age seven and up with the honest answers they're looking for through age-appropriate, reassuring words and accurate, up-to-date, inclusive art. Throughout the book, two cartoon characters, Bird and Bee, are the voices of kids. They talk together to help children feel that they are not the only ones wondering how we all began. Rigorously vetted by experts and featuring updated and new facts on pregnancy, birth, adoption, bodies, sexuality, gender identity, OK touches, not-OK touches, straight and LGBTQ+ families and people, and many other topics, this comprehensive resource for kids, parents, librarians, teachers, booksellers, and healthcare providers is the book that can help younger kids and their families talk together and find answers to their many questions.

Michael Emberley says that while creating the illustrations for IT'S SO AMAZING!, he "tried to delicately balance age-appropriateness, absolute accuracy, honesty, and just plain fun."