Our school has been blessed with having multiple copies of lots of different books. We house them all in our Literacy Library.
Years ago, we made a decision to do away with reading workbooks and we were allowed to spend some of that money on ordering books.
We bought matching bookshelves and lined the walls with them. Each set of books is kept in cardboard magazine boxes. My paraprofessional typed up book labels for each box. On the side of each box is a library pocket and card. Teachers just sign the card when they want to borrow the books from that box.
A couple of tables and some chairs sit in the middle of our Lit. Library. We are able to hold parent meetings here when needed. This room is close to the office so it makes it convenient to be able to use this room as a conference room as well as a Literacy Library.
Does your school have anything like this or does each teacher keep all their books in their own classroom? I would love to hear how your books are organized!