The Passport book is perfect for planning a trip to visit our national parks and for saving your memories after you've left. The Passport book dissects the country into nine geographic travel regions for easy reference. Each region is identified by color throughout the book. The Passport contains maps, park information, and a listing of all the national park areas in America. The book has places for you to collect the series of Passport stamps which are issued each year. It also has areas where you can get your book canceled when you visit a national park.