One Day by British writer David Nicholls seems to be taking the USA by storm. Entertainment Weekly featured it recently saying it should make a great film (word is that Anne Hathaway has already signed on). People magazine has given it 4 out of 4 stars. It has just been released in trade paperback and Early Word suggests that someone here must be kicking themselves for not publishing it in hardback.
I made my reservations with my local library, which doesn't have a copy in stock and has only ordered 4. Big mistake.