I have a cupboard in my room that has 6 shelves that pull out and they are 2 doors wide(about 3 1/2' wide). A few years ago I gathered all my info. and large posters of artists in manilla folders and they lay alphabetically on these shelves, overlapping each other but I can see the names left edge of the folders. Some are by subject, some by artist. This has worked pretty well for me.