Self-Publishing ISBNs Climbed 8% Between 2015-2016

Since 2011, International Standard Book Numbers (ISBNs) for self-published titles have climbed 218.33%, according to the latest report from ProQuest affiliate Bowker. A total of 786,935 ISBNs were assigned to self-published titles in 2016; in 2011, that number was 247,210.

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