My community holds book sales twice a year. I try not to miss these sales. Each book sale benefits the local library. Naturally the books come from a wide range of sources. Many people buy books and then donate them. Some are even current releases.
A few even come from the library itself. I asked our librarian how they determine which books stay on the shelves and which go into the sale. Her response disclosed quite a bit of thought and planning.
Of course, the library naturally looks at check-out rates. If the book is consistently checked out, it stays on the shelves. But other factors come into play. Even if the check-out rates are not high, some books are kept. For example, if the book is from a local author, it may stay on the shelves a bit longer. Other reasons to keep a book is if it is the seminal book on a particular topic. Or if it is a classic which will most likely come back in demand.
Most of the books at this sale were donated. Sometimes the donations come from estates. But other times homeowners are just making room on their shelves for new books. This recycling of books allows more people access to reading material.
There is a downside for writers. Resell books do not provide royalties.
In defense of both book sales and used book stores, I find many new to me authors from these sources. Then I look for their new works. For example, I bought Terminal Freeze by Lincoln Child as a resell. In fact, I enjoyed the book so much that another member of the household was persuaded to read it. A few months later I spotted City of Endless Night which Child recently co-wrote with Douglas Preston. Since I enjoyed Terminal Freeze so much, it was easy to choose that book over another.
An upside to these sales is getting books into households that may not have the ability to buy reading material at retail prices. My county has a low household income average. Reading is a major factor in increasing knowledge. This in turn can increase the standard of living.
Do you have library book sales in your town or county? How do you support these efforts? Which of the above books should I read first?