We were in the lovely Opal School in Portland, OR when we happened to see this beautiful classroom library. What struck us most was the use of clear tubs and clear labels. Often times we have used colored tubs and labels in our classroom, which created a problem later when when we wanted to add more tubs or labels and couldn't find a match. The result was typically a mish-mash of visual noise. The use of these tubs keep the books corralled and organized while allowing the focus to be on the reading material within. The result is un-cluttered arrangements. Check it out for yourself.