Organizing Piano Books in the Studio Library

Organizing piano music can be a challenge since the majority of the book spines are so small that the title/color of the book isn't obvious when they are stacked on a bookshelf. I use these handy circle dots to color code all of my music by levels that correspond with the colors of the Hal Leonard method books I began teaching with (Level 1 Blue, Level 2 Purple, etc.). The colored dots "move up" the spine of the book as the level of difficulty of the music increases. For books with various levels of pieces I add multiple stickers. This has come in handy not only when I'm trying to locate a specific book, but also when I need a quick sightreading piece that is a level below a student's current playing abilities.
I also add a sticky name/address label on the back of all the music in my studio library to distinguish it from my students books and help them remember to return it to me.