The Rangeview Library District is converting from using the Dewey Decimal System to a word-based classification system using BISAC subject headings to organize their collections. They conducted studies that showed customers found the Dewey system difficult to use. The leadership team initiated a full collection review and weeding project. Now, the collection development team is designing the new BISAC-based system and implementing it branch by branch, with training for staff. The goal is to create intuitive "neighborhoods" of similar materials to improve the customer experience. Statistical analysis will assess if circulation increases as intended with the new system.