The "Time Out Group's core businesses are located in London, New York and Paris, where "Time Out's weekly publications and local guides are recognized as the leading source of information for both residents and visitors. In 1990, Penguin Books launched the "Time Out city guides series, starting with London, Paris and New York. The series continues to expand each year, and the books have become firmly established as indispensable guides to some of the world's most visited cities. Written by resident journalists, and updated at least every two years, they are packed with insider information on what to do and where to go. The "Time Out Guides series is complemented by a range of fiction, walks and reference titles, plus the latest addition, the eating & drinking guide series, all of which showcase "Time Out's trademark strengths of attitude, accuracy and eclecticism.