Then, how to track? I wound up using #LibraryThing. It integrates with the Library of Congress and other libraries, plus Amazon, for pulling in metadata. Its site is designed to work well with barcode scanners (I found the Honeywell 1900G-HD works really well). It also has CSV and JSON exports, plus CSV imports. I can also add all my books from local authors that aren't in any database, etc. 3/