It's that time of year. Journalists, reviewers and cultural pundits are making their selections of the year's best books. But we want to hear from YOU.
Which has been YOUR favourite book of 2017 - the one book you couldn't put down, haven't stopped thinking about, or couldn't wait to recommend to friends? We're looking for books that were published this year (from 1 January 2017) in either paperback or hardback, but won't be too precious about it.
Fill in the form below with your choice along with 100-300 words on why it's your book of 2017 and we'll share some of our favourites using #HayBookOfTheYear.
The overall Hay Festival Book of the Year 2017 will be announced at Hay Festival Winter Weekend this November.
Earlier in the year we selected 30 essential books of the last 30 years to mark our 30th anniversary. This could be number 31! And by submitting your selection below you'll also be entering a prize draw to win a full set.