We have a lot of children's books. Jeremiah and I are each borderline bibliophiles. When we moved to Texas from San Francisco we shipped back 37 boxes of books. Thirty-seven. We've since pared down our personal collection to books that we love and absolutely must own but they still over-fill a wall-sized bookshelf.
We seem to be passing on our love of books to Z. Through a combination of books collected from library sales ($20 for a paper bag full!), used book stores, and gifts, we've filled a bookcase for Z. The great majority of these books are actually age-appropriate for her now - we do have limited space so we tend to not buy books that she isn't yet ready to read. As freeschoolers (we homeschool Z but don't use a curriculum), we want our daughter to have access to a wide variety of books and these books have basically replaced our curriculum purchase. (And yes, we do make heavy use of our local library as well.)
About a month ago, we cleaned our her bookcase and got rid of books she's too old for now or that ended up not holding any of our attention. While we were doing this, we started to try to organize her books. We wanted a way to easily find a few broad categories of books, with a visual cue that made it easy to select a book based on a broad type of book Z or we wanted to read or look at, particularly for narrow-spined paperbacks that can easily get lost on a bookshelf. We had an interesting time figuring out what those categories might be for a five-year-old and the way they use books. Ultimately, we selected categories based not on traditional topic categories but on the kinds of books we'd like for her and us to be able to quickly access when we're looking for something to read together or when she is browsing alone. We ended up with four functional categories to label, with the remaining books left unmarked. This required some discipline, because I've always had a fetish for book organization. But we didn't want to create a system that existed for its own sake, or that built up walls between areas of exploration. The categories we selected are:
- Science books: Nonfiction books dealing with science topics, at varying levels of complexity. Many of the Let's Read and Find Out series here.
- Math books: Fiction and nonfiction that introduces simple math concepts, ranging from counting and numbers to books about addition, multiplication, and money.
- First readers: Z is rapidly learning to read and we identified books she might have the most success with during reading sessions and solo attempts over the next several months.
- Seasonal books: Books that are steeped in a particular season of the year. A lot of the early grade science we currently do revolves around observing and interacting with the natural world, and the seasons play a large and obvious role in that, so we try to keep relevant seasonal books in the mix for our family reading. Geography and the earth-sun relationship are also natural topics to explore in this area.
We know ourselves well enough to know that we won't put them back in the proper section if we tried to divide them by areas of the bookshelves (and what happens when a book is too large to fit in a particular section?) so we decided to put colored stickers on the spine. I wasn't thrilled about the idea of marking a book this way but Jeremiah convinced me it was okay because most of them aren't collectibles.

Notice how well the stickers help identify book categories in narrow paperbacks!

Tiny books were placed in a box of their own and tall books are on top of the shelf with bookends.
The problem now, which you may have noticed in some of the above photos, is that the stickers that we used - simple round stickers from the office supply store are peeling up and then they come off or stick to other books and have the potential to create chaos in our system. We may tape them down or we may seek out stickier stickers. But we're pleased with the overall concept and think it will help Z as she begins to explore books more and more on her own, in addition to the daily reading we do together.

If you have a large collection of children's books, do you organize them in any way? How do you keep them organized, or otherwise make sure that in a large collection, good books get noticed and children have access to what they want to read?