isbn

Standards & Metadata

Updated guidance on Barcode Price Extensions

September 8, 2025

Recommendations on Barcode Price Extensions.
Standards & Metadata

Don’t lose sales through BAD ISBN-10s!

December 3, 2016

Your ONIX software may be converting your ISBN-10s to ISBN-13s or vice versa. We tell you why that’s a problem!
BiblioShare, ONIX, Standards & Metadata

Getting Data Dropped: Support and Update Your Records

June 16, 2011

BNC BiblioShare has been getting queries from publishers asking why after dropping a record from their ONIX feed it hasn’t disappeared from The 49th Shelf. BiblioShare supplies data to a lot more firms than The 49th Shelf and that list is growing, but we like that you’re paying attention and finding problems in 49thShelf.com. Here’s…
Standards & Metadata

BNC 101: ISTCs

August 12, 2010

An ISTC is a new way of linking different formats of the same book. Unlike an ISBN, it is tied to the book and only the book, not the publisher. A simple example is using an ISTC to link the hardcover, trade paper, mass market, and epub versions of a title. Even though each format…