There are travel guides for adults. There are travel guides for kids. This travel guide is for adventuresome teenagers who are going to London with their families or friends. It hints at playlists to listen to (the flight from New York to London is 140 songs long) and movies to watch before you leave. This book tells how to set up smartphones for the trip so teenagers can message home, and gives teenagers ways to get some space away from their families. Like most travel books, it suggests places to go see in London--with and without parents, but also stuff other books don't cover: where to charge our phone in airport, where to find free WiFi in London, and what to eat for breakfast. Some parents will be appalled at the recommendation to eat, at least once, at a London McDonalds. But that is why they are parents, and you are a teenager.