It's hoped around 21,000 books will find a new home this weekend.
Lifeline Central West will host its book fair fundraiser in the Naylor Pavilion at Orange Showgrounds, with an aim to raise more than $35,000 for the telephone support service.
Crime, fantasy, mystery and Mills and Boon aficionados will all find something to keep them entertained, with secondhand titles from all genres on sale on both Saturday and Sunday.
Lifeline Central West Executive Director Alex Ferguson said the annual book fair has previously been reserved for Bathurst, but this year they're bringing the huge sale to Orange.
Lifeline does a lot of good things but that's money we have to find.Lifeline Central West Executive Director Alex Ferguson
He said the "mint condition" books will be priced from as low as $1.
"Maybe $10 for something exceptional," he said. "No coffee-stained, dog-eared or mouldy books either."
Mr Ferguson said the quality of the books is "what drives the exercise", which is a "hugely important" part of funding the crucial service.
He said to equip each Lifeline volunteer with the skills to man the phone and provide advice to callers it costs $4000 per person in training.
"Lifeline does a lot of good things but that's money we have to find," he said.
He said with calls from people experiencing domestic violence, cyber bullying, as well as addictions to drug and alcohol coming in each day, the volunteers' work can be pretty demanding.
"Some of the phone calls aren't very nice," Mr Ferguson said. "While we are always looking for more volunteers, it does need to be someone with a bit of life experience under their belt."
Mr Ferguson said the fundraiser was a vital date on the service's calendar, and asked the community to get behind it.
"Come and find the author and subject you like and help Lifeline to maintain the community-based services that Lifeline are renowned for," Mr Ferguson said.
Doors to the Naylor Pavilion will open at 8.30am and close at 4pm on Saturday, and reopen at 10am on Sunday before shutting for the final time at 2pm. Entry will come at the cost of a gold coin donation.
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