Adding a small gaming station to the library near the computers would likely be a huge hit. Limit the seating to reduce noise. Mount Gambier Library Teen Young Adult Gaming Area - Could also be used for separate computer stations for teens.
This spiral sequence of the bookshelf continues to eventually wrap the periphery of the site as the external wall, allowing the external appearance of the building to share the same elemental composition of the bookshelf-as-the-library.
some good ideas on children space also providing multi sort or return books could be useful - also interesting to see where people think books belong (might help in layout) Hjorring (Denmark) Public Library
New York Public Library unveils designs for new $20M branch on W. 53rd Street