Famous for ''telling it how it is'', this handy guide, now in its 20th edition, remains the first choice for discerning Londoners. People-power underpins its authoritative reviews and ratings, which are based on the UK's most comprehensive annual survey of the restaurant-going public (in which many thousands take part). The guide's unique marking system ensures that the best pubs, curry houses and cafes are given the same recognition as the temples of gastronomy. A user-friendly format is key. Reviews are liberally scattered with quotes from ''real'' people, and ratings (on a 5-point scale) grade the Food, Service, and Ambience for each establishment. There are extensive maps showing individual locations, plus a vast array of indexes to help make the best choice for any occasion.