Plum TM Analytics product, PlumX, is now utilizing the OCLC WorldCat API to capture library holdings. The seamless integration between PlumX and WorldCat helps scholars not only know how many books have been sold, but how many academic institutions hold those books for scholarship.

At the bottom of the page you can see the metrics associated with the book. Click on the WorldCat Holdings (80 in this example), to see which libraries hold this title.