(This is abbreviated text from The Global Indie Author.) The high cost for individual ISBNs in some jurisdictions versus the inexpensiveness of a block of 1000 ISBNs — costing as little as $1.00 per unit — has created an opportunity for vanity press (“author services”) companies and ebook aggregators to offer free ISBNs to their clients. Most vanity publishers, in fact, make use of their ISBN mandatory. But there is a hidden cost to accepting this ISBN: by doing so the indie author is technically no longer self-publishing: the vanity Read More …