Bowker is the US agency that writers and publishers must use to register for an International Standard Book Number (or ISBN) for their book. The new site shares some useful advice about why an ISBN matters and how to get your ISBN. Here’s an excerpt:
If you are publishing a book, you are a publisher. You don’t need a corporate entity to purchase ISBNs. You can purchase them under your own name, or create a name for yourself as a publisher – e.g. “Laura Dawson Publishing”. This name does not need to be registered in any way … There is no such thing as an e-ISBN. ISBNs are ISBNs – some identify physical products in the book supply chain, others identify digital products in the book supply chain. Vendors who ask for information about your e-ISBNs are using incorrect terminology – they simply want the ISBNs of your digital products.