on Self Publishing Advice:
KDP has had a longstanding print pricing requirement that ebooks sold through the platform may not be sold for more than the list price on other retailers or websites.
When Amazon folded its CreateSpace print-on-demand services into its KDP platform, few authors realized that this restriction was applied to print books as well. If you priced your paperback at $14.99, but it was available on other retailers for $12.99, Amazon could take disciplinary action against your account.
Chris The Story Reading Ape's Blog 
I didn’t know this. Yikes! I did know it for digital books and carefully follow it. I change my entire life for Amazon. Sigh.
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Very interesting! I’ve been working on a book to publish through KDP so this is good to know.
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Thanks for this information, Chris. Reblogged on: https://harmonykent.co.uk/amazons-unwritten-print-pricing-rule-by-john-doppler/
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