In contrast to many other books which are organized by party theme (dog, princess, superhero, etc.), this book is helpful because it is organized first by age and then by type of activity. The age ranges are preschool (2-5), school age (6-9) and preteen (10-12). The activities are grouped by traditional games, contemporary games, group activities, outings and events (which are closer to the theme parties you get in other books) and entertainers. Each game identifies not just the target range, but how far you can stretch to encompass older kids, the number of players needed, game objective and what materials to have on hand. It also gives ideas for creative ways to modify the game to fit children's disparate interests or different settings, prizes, favors, and trouble-shooting tips.