Community book sales can be a big financial boon for local groups and charities.
But the cost of dealing with what doesn't sell is enormous.
Ashburton's annual Bookarama sale had sixteen tonnes of waste left over from this year's event, with a cost of seven thousand dollars to take to a tip.
John Driscoll is from the Rotary Club of Ashburton, he's one of the people behind the Bookarama, and he joins Mark Leishman.
Ashburton's Bookarama is an annuial event. Photo: Rotary Club of Ashburton