This Flask app queries Primo's Search API and returns a visualization of where books can be found by LC Classification, creation date, and topic.
Completely rewritten in October 2018.
The d3.js script is mostly drawn from http://bl.ocks.org/mbostock/4063269 (GNU General Public License, version 3)
As a result of the above license, this code is also licensed under the GNU General Public License, version 3
