One Direction: an unofficial biography. From X-Factor to wow-factor: adored at home and provoking a Beatlemania-style reaction in the US and Canada - the boys have conquered the world! Who would have known that after placing third on the talent show, they would go on to inspire such crazed devotion in millions of adoring fans? With a global breakthrough undeniably helped by social media and phenomenally successful debut single 'What Makes You Beautiful', the five lads fulfill a still-present need for cute, clean cut, wholesome pop music. Awesome pics and inspirational text chart their extraordinary rise to fame.

Nadia Cohen (author) is an entertainment journalist who has worked at various national newspapers. As showbusiness correspondent for the Daily Mail she covered star-studded film premieres, award ceremonies and press conferences around the world. She was headhunted for the launch of a new American celebrity magazine, In Touch Weekly, and spent several years in New York. In Touch now has a readership of over a million. Nadia now lives in London and contributes regularly to Grazia magazine.

Mango Saul (foreword) has been a music, lifestyle and entertainment journalist for ten years. Some of his highlights include having breakfast at Waffle House with rapper Ludacris in Atlanta, sharing a bed with Destiny's Child for a Smash Hits cover interview and being sent an ice cream costume for no reason. As Editor of Sugarscape.com, Mango has seen the site grow to over 4 million page views per month and was shortlisted for Digital Editorial Individual 2011 at the AOP Awards.