Dropping Dewey

Rangeview Library District in Colorado made the news this week with their announcement that they are eliminating the Dewey Decimal Classification (DDC) from their books. See the original article from Library Journal here http://www.libraryjournal.com/article/CA6663145.html?industryid=47105. The library's official announcement can be found here http://www.rangeviewld.org/rangeview-library-district-%E2%80%9Cbreaking-dewey%E2%80%9D and you can see a photo of their spine labels.
Rangeview is the first library to implement a new cataloging system in all of its locations. Maricopa County Library District http://www.mcldaz.org/default.aspx dropped Dewey in a couple of branches a few years ago. In Texas, Southlake Public Library http://www.cityofsouthlake.com/SouthlakeGovernment/City_Departments/Library/default.asp is currently converting its collection away from Dewey, although I only found Dewey numbers in their catalog.
So what are these libraries using in place of Dewey? It's not LC (Library of Congress) classification. They are using the Book Industry Study Group's Book Industry Standards and Communication (BISAC). BISAC has 52 major subdivisions as opposed to Dewey's 10. It is considered more intuitive and user-friendly and found in bookstores such as Barnes & Noble and Borders. BISAC's subject headings are here http://www.bisg.org/standards/bisac_subject/index.html. Rangeview adapted their own classification scheme from BISAC and called it WordThink. Baker & Taylor have BISAC and WordThink subject headings available for their titles.
If you are interested in what some in the library community are saying about this, check out the Annoyed Librarian's blog http://www.libraryjournal.com/blog/580000658/post/690045469.html.