http://authorearnings.com/report/oct...-ebook-market/
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- Amazon makes up a higher percentage of the total US ebook market than the oft-cited 65% figure: when indie books without ISBNs are included in the statistics, Amazon accounts for 74% of all US ebook purchases and 71% of all US consumer dollars spent on ebooks.
- Outside of Amazon.com, 4 other major online retailers comprise nearly the entirety of the remaing 26% of the US ebook market: the Apple iBookstore, the Barnes & Noble Nook store, the Kobo US bookstore, and GooglePlay Books.
- At those 4 other stores, self-published indie ebooks make up 22% of all ebooks purchases and take in 32% of all author income generated by ebook sales.
- Between 14% and 25% of all ebooks sold at Apple, Nook, and Kobo store lack Bowker-issued International Standard Book Numbers (ISBNs).
- In total, more than 33% of all ebooks sold in the US each year have no ISBN.
- Across the entire US ebook market, ebooks without ISBNs now command a greater share of consumer ebook purchases, reading time, and author earnings than all of the AAP’s 1,200 publishers put together, including the Big Five.
- The true US ebook market, which includes non-ISBN sales, is at least 50% larger than ISBN-limited market statistics from Nielsen and Bowker are estimating.
According to most industry accounts, 65% of all US ebook sales happen through Amazon’s Kindle store. Or, more accurately, 65% of traditionally-published ebook sales do — because as we’ve seen, the media reporting on the industry almost always confuses the sales of only 1,200 traditional AAP publishers with those of the entire US ebook market. And as we’ve also seen, those 1,200 AAP publishers now represent less than half of the broader US ebook market — a market which, despite all the misleading media coverage of the AAP’s collapsing ebook sales, is still growing while the AAP’s minority share of it falls.
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In the US, more than 95% of all consumer ebook purchases — and probably closer to 99% of them — go through just five major ebook retailers. Among those five, Amazon is the proverbial 800 pound gorilla. Amazon accounts for almost two thirds of the traditionally-published total… and significantly more of the true overall ebook total, making up 74% of US ebook unit sales and 71% of US gross consumer dollars spent on ebooks (once you include all no-ISBN indie sales and those of Amazon’s publishing imprints.)
Next up in size after Amazon is Apple’s iBooks store, accounting for roughly 10-12% of US ebook sales — or a third of what’s left. After iBooks comes Barnes & Noble’s Nook store, which despite its steepening downward slide over the past two years, still remains the #3 ebook retailer with about 7-8% of all US ebook sales. Fourth up is Kobo, with about half of Nook’s sales — or maybe 3-4% of the total US market. And finally Google, with around a third of Kobo’s sales, making up 1-2% of today’s ebook market — a surprisingly meager showing for the internet giant.
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As usual, much more (and pretty pictures!) at the source.