This book is a great size and sturdy for use while out on the streets of London. I was there 8 days and used this book second most. My #1 choice was the Knopf Map Guide London. This book, was very good though. It has a mini built-in compass and fold away pen for making notes. The map pages "pop out" and then fold back in. Maps highlight major tourist areas and attractions. Sometimes the map is a little tiny to ready, the Knopf was sometimes easiser to read. This book had 2 map sections: one of all of central London and then a more detailed one of Mayfair/Soho/Westminister areas. There are also a few pages on what to see/do/eat in London but not very detailed. I used a larger travel guide to help me plan out what I'd do while in London. I used this for out on the town to keep me from getting lost. The size of it can't be beat, easily fits in a large pocket or purse or bag.