One key example was his decision to set up subject departments. For decades prior, libraries stored books on fixed shelves (these couldn’t be adjusted), so they were usually sorted by size or acquisition date. Libraries had only recently moved to the not-very-user-friendly Dewey decimal system.
By grouping books under subjects, Perry made it much easier for people to find what they wanted. His idea was so successful that it eventually spread to other libraries across the country.
Another innovation was where you could read the books. Perry put the circulation and card catalog area in the center of the floor, which was surrounded by book stacks and reading rooms along the edges. That meant they were next to the windows and full of natural light, which according to LAPL, wasn’t customary at the time.
by MiddletownBooks