Actress Joanna Lumley is among the names included in the line-up for the 10th Borders Book Festival in Melrose.
The programme for the four-day event has been officially launched.
It will run from 13 to 16 June and also includes golf commentator Peter Alliss, authors Hilary Mantel and William McIlvanney and actor Tom Conti.
The winner of the fourth £25,000 Walter Scott Prize for historical fiction will also be announced at the festival.
Festival director Alistair Moffat said the event had been transformed over its decade in existence.
"In 10 years, we have moved from the Wynd to the National Trust for Scotland's Harmony Garden," he said.
"The 220 who attended in 2004 has mushroomed into 13,000 in 2012, and the event has become a vital driver for the tourist economy."
He said the key to its success had been the writers involved.
"Our sponsors help us make it happen - but it is the authors who have made it sing," Mr Moffat said.
"We couldn't have hoped for a more diverse, starry and topical cast of stars to help us celebrate the 10 years, than those in this year's programme."
Jonathan Tweedie, of main sponsors Brewin Dolphin, said the festival was going from "strength to strength".
"When you look back over the last decade, the quality, range and diversity of the authors who grace the marquees is truly remarkable," he said.
"And so we look forward to this year's jam-packed programme of activity.
"We are privileged to have such a wonderful festival in the heart of Melrose."