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anamardoll · 03-11-2012, 10:43 AM

You buy them here:

https://www.myidentifiers.com/isbn/main

You're supposed to use 1 ISBN per "format", but most authors choose to interpret "e-book" as a single format. So if you have your book in electronic form, in paper form, and in audio book form, you would need 3 ISBNs.

03-11-2012, 10:43 AM	#3
anamardoll Chasing Butterflies Posts: 3,132 Karma: 5074169 Join Date: Mar 2011 Location: American Southwest Device: Uses batteries.	You buy them here: https://www.myidentifiers.com/isbn/main You're supposed to use 1 ISBN per "format", but most authors choose to interpret "e-book" as a single format. So if you have your book in electronic form, in paper form, and in audio book form, you would need 3 ISBNs.