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My husband once told me, “I love how excited you get over very boring things.” Explaining the intricacies of cataloging books or reading pages of library policy would be boring to most people, but they’re not to me. I can get into unprovoked deep dives on library science and the history of youth literature, because these are things that I care very much about. But when I get going, it turns out that most people also have at least a small amount of interest in the inner workings of a library. Instead of our normal book post today, I want to give everyone a peek behind the desk and talk about one of my favorite “boring” library things: collection development. Specifically, “deselecting” materials from the collection, called weeding. 

C’mon, I know you’re at least a little curious about how we decide to get rid of things. 

But first you need to accept a hard truth: libraries throw away books. Like, a lot of books. I know how bad this sounds. Libraries are supposed to safeguard these tomes and preserve them for the world to enjoy, right? Aren’t books precious gems that need to be saved? 

Excluding things like rare first editions and other historically important books…not really. For the vast majority of books, I think that their true value is what the reader gives them. While I’m not getting rid of anything on my personal bookshelf at home, just yesterday I happily discarded a little over thirty books without a twinge of guilt. 

While this may sound cruel to book lovers, weeding is essential to a healthy library collection. There’s the matter of space, of course: no library can fit every book its users might need. But it’s also a matter of relevance. One of those books I recently discarded was a book about A.I. that was published in 2005. A.I. is a very hot topic right now, and this is technology that will continue to shape our future. But an almost 20 year old book on the topic isn’t relevant anymore. Not only is the information in the book dated, it’s also inaccurate. Misinformation is just as bad as no information, if not worse. Weeding gives library staff an opportunity to assess the collection, and to see what needs to be updated and where gaps are. It’s a critical tool in curating a library collection that best suits the needs of its users. 

I have a love/hate relationship with weeding. Sometimes it feels great, and other times it’s really tough to make the decision of what book stays and which goes. 

How do librarians make that decision? There are a lot of factors involved in deselecting materials, and it’s best to make each decision on a book-by-book basis. 

The first thing I look at are the number of check-outs a book has, and the last time it was checked out. In library terms, we call these “grubby” and “dusty” or “dead” items. 

Grubby items are books and other materials with a lot of check-outs. Popular books that get checked out a lot are going to get worn down through the wear and tear of frequent handling. I’d love to believe that everyone treats their library books with respect and care. However, I’ve seen enough books returned with stains, torn pages, and (on a memorable occasion), live ants, so I know this is not the case. The more times a book has been checked out, the more likely it’s going to return with damage, especially if it’s a book for children. But even if nothing bad happens to those books while they’re checked out, it doesn’t mean that they’ll be in pristine condition after they’ve been checked out 50 times. Oils from our hands will get on the pages, spines can become unglued, chunks of pages can come loose or fall apart for no other reason than the fact that the book’s been used a lot. Then there’s the smell. You know it: the dusty smell of old books. If you love that smell, skip the next paragraph, because I’m about to ruin it for you. 

You know what that smell is? Human skin particles. Gross, but true. 

When I have a “grubby” book in hand, the first thing I do is check its condition. I look for torn pages, markings, damaged spines, stains, liquid damage, and, for some books, see if it passes the literal sniff test. The two grossest things I look for are mold and insects. These are both really bad things to find in a book. Mold doesn’t just present a potential health hazard. It spreads fast and can eat through entire library collections in no time. Get rid of moldy books quickly, before every book around it becomes a moldy book. 

If you find bugs in a book, hopefully they’re already dead. If you decide not to keep the book, then you’ll need to clean up the insect murder scene, make sure there are no survivors, and clean the book. Living bugs are a whole different story. There are plenty of critters who would just love to eat through those tasty, tasty pages. In fact, this is where the term “bookworm” comes from! Just like mold, bugs can literally eat their way through a library. Even insects that don’t eat books can be a problem. I spent way too long cleaning a picture book full of live ants. It was gross, time-consuming, and absolutely necessary. Insect invasions can lead to all kinds of problems for library staff and patrons. Once my library had to close due to wasps in staff areas. Turns out most people do not like their coffee covered in bees.

Determining whether to get rid of a grubby book can be challenging, since they  often become grubby due to popularity. In this case, ordering a new copy is usually the best option. However, this isn’t always possible. Funding to purchase new books might be limited, the book could be out of print, or the book might only be available in a format the library doesn’t want. For example, sometimes old picture books are no longer available in hardcover, and I can only purchase a softcover copy. Paperbacks are more easily damaged than hardcover, thin, softcover picture books can quickly be lost on the shelves between thicker books. When that’s the case, it may be time to say farewell to your much-loved book. 

“Dusty” or “dead” books are the opposite of “grubby” books. These are books that haven’t had a lot of check-outs, or books that haven’t been checked out in a long time. The definition of a “long time” depends on the library, but it’s typically between two to three years. While that’s a helpful guideline to start with, it’s by no means the only thing to take into consideration when deciding to keep or weed a book. 

First of all, low check-outs or no check-outs doesn’t mean that the book isn’t being used. It’s entirely possible that library patrons are looking at the book at the library instead of taking it home. Patrons may be reluctant or embarrassed to check out books about health, sexuality, gender identity, and other sensitive topics. This is especially true when it comes to books for teens, who may not feel safe or comfortable bringing these books home, and may not have access to them at school. 

Another consideration is the number of libraries nearby that have the same title. If a book you’re considering discarding is available in 15 other nearby libraries, you probably don’t need to hang on to it. But if you’re the only library in 30 miles who has this book, you’ll probably want to keep it, even if it doesn’t get a lot of circulation. 

You’ll also want to check the content of the book. If it’s a nonfiction book, it’s important to see how many books on the topic (or a similar one) you have. If it’s children’s nonfiction, you’ll also want to make sure you have books of varying complexity. The book a six-year-old needs to do his homework is going to be very different than the book an eleven-year-old needs, even if it covers the same topic. 

The content of the book also needs to be accurate and relevant. Some topics, like health and technology, change very rapidly, and books in those areas can become obsolete fast.

Content also matters in terms of fiction. For example, if I have to choose between a YA romance and a YA novel about drug abuse, I’m keeping the latter. Romance is always popular, which is why there’s always so much on the shelf. The book about drug abuse is probably not as much fun as a boy-meets-girl story, but it is something that is present in every community and too many families. I have always believed that fiction is a safe way to learn about a tough topic, and I try to keep books that deal with current issues on the shelf. It’s also important to have a diverse collection with books that feature characters with a variety of races, sexualities, backgrounds, and ideas. 

And that, in a nutshell, is weeding. 

Well, sort of. As I said before, deselecting materials should be done on an item-by-item basis. 

 “Grubby” and “dusty” aren’t the only criteria librarians use to decide whether or not to weed an item, but they are a helpful place to start.

Keep calm and weed on.