A high concept love story with a twist from one of the smartest, funniest, wittiest writers around. Tom got a note from his girlfriend. It says she hasn't left him, but she's gone. But where the hell is she? When is she coming back? And what is Tom supposed to do in the meantime? With each new clue to Hayley's whereabouts, Tom is forced to question whether he truly knows his girlfriend at all. Because who is Hayley really, anyway? Who is this other strange girl following him? And who, for that matter, is Tom Ditto? A laugh out loud high concept love story with a mystery at its heart, for fans of Nick Hornby and David Nicholls from the bestselling author of Yes Man and F*** You Very Much What people are saying about Who is Tom Ditto? - 'Danny Wallace at his very best- funny, assured and relentlessly clever. A brilliant novel' John Niven 'A terrific novel.the plot is wild and unexpected, with a dash of sinister, and it's incredibly funny' The Times 'Wallace is adept at capturing the nuances of the mundane and the ridiculous, while being incredibly funny' Stylist 'A hilarious and fresh take on modern life. Brilliantly written' Heat.