In the ninth book of this series, we travel on to eighteen more countries and one state in the U.S.A. Each country or state is a one-page chapter. On the first page is a letter written by a teenaged citizen. They’re flag flaps proudly in the wind beside the letter. Following that, in bright colors, is an illustration of the teenage author. This is a very well researched and informative book. Schools would benefit if they had this series! For this reason, I award the book 5 stars.