Libraries have different ways of dealing with extra copies. After these books are 6-8 months old, they’re ready to retire to the regular stacks. But how many copies should we hold on to? And for how long? At our library, we keep two copies and hold onto them until they get weeded (which means no checkouts in 4 years). So, browsing through our regular stacks, it’s hard not to notice the many copies of older Patterson’s, and Baldacci’s, and [any popular author we get more than two copies of]. Many are newer, but many are old – really old. Like over 10 years old. Do we really need two copies of a Patterson novel from 2002? That’s a lot of real estate, after all.
Turns out, yes.
Focusing on our Central (downtown) Branch, I recently ran an experiment in CollectionHQ tracking the performance of (a) books we had two copies of and (b) that were at least 10 years old. I scanned a large sample of these books into one experiment, a total of 281 books – from Child to Connelly, Cussler, Evononvich, Kingsbury, Koontz, Macomber, Patterson…you get the idea.
And then I waited.
In four months, 102 of those books had circulated (35%). Not bad. In six months, 129 had circulated (46%). That’s a lot, and doesn’t count renewals, which accounted for 291 circulations. And in many cases, both older copies were checked out (not just one of them).
Don’t sleep on your older but popular authors.