DR Jane, that is crazy that one book has 24 holds. isn't the library just for your town? Even the most popular books here would never have more than 10-15 people on the list. And that would only be if it just came out.
Each little suburb here has its own library. So maybe your town has more people.
It is very common for libraries to be part of a larger network of libraries in order to share their resources. Our Ashland Library is only 1 of 15 libraries that are part of The Jackson Country Library Services.
So when you say that 25 people have reserved it, you mean you can get it from any one of the 15 libraries?
Here it doesn't work that way. My library did used to share books with the next suburb over. But that ended in september. I think it was similar to your situation in that we could reserve books from either library or have them brought to my library (although the other one was only 10 minutes away).
But now we can only get books from my library. But if they don't have the books and don't want to buy them we can get an inter-library transfer. But i've never had to do that.
The Timberland Regional Library (where I work) is made up of 27 branches, spread out over five counties. It's all one library system and we all use the same computer system but not every branch has every title. We have three selectors who decide what to buy for the entire district.
On average, two or three copies of each selected non-fiction title is ordered and four or five copies of each selected fiction title is ordered. Those are just the averages. The selectors have a "high demand list" where they can see every single title in the system that has an on-line request and buy more copies if they want.
Once the computers came into common use, our library system has been about getting a broad range of genres and titles spread throughout the entire district, but not necessarily a high number of copies of each title. The patrons know that as long as a title is in the computer system, it's available for anyone anywhere to check out and have sent to his or her own local library within the district.
Not that you asked me.