The book is divided into four key sections, starting with prehistoric times, and then progresses to the ancient world, medieval history and recent history (until the year 2000). Together we read 8-10 pages each day and he often asks for the sections he found most interesting to be reread, or will sit and look through the pictures by himself. Recommended to every parent who wants to spark their child's curiosity in history and the world. Note: I have noticed that the four sections of this book are also sold separately under different titles. For example, we already had the Usborne title 'Ancient World.