Everyone can easily publish and sell e-books.
There are many sites that can sell e-books. The selling regulations are different for each site.
So, in this article, I tried to compare e-book publishing and selling services.
Compare the 3 main sites "Amazon (Kindle)", "Google Play" and "iBooks Store".
There are differences in royalty rates for each site. Only Amazon is confusing.
|Site name||Royalty rate||Notes||Reference source|
|Amazon||35%||If the book meets requirements: 70%||Amazon Help|
|Google Play||70%||Google Play Help|
In the case of Amazon, if the book meets requirements, the royalty rate will be 70%. The content of the requirement is complicated. → See Amazon help
One of the requirements is "Exclusivity". It is prohibited to sell books on sites other than amazon.
You choose either "Set the royalty rate of Amazon at 70% and sell it on Amazon's market alone" or "Set the royalty rate of Amazon at 35% and sell it in other markets".
After setting it with 70%, you can change it to 35% and sell it on other sites.
Possibility of free sale
Selling "Volume 1" of the series for free is a good promotion. So, I will summarize about possibility of free sale.
|Site name||Possibility of free sale||Notes||Reference source|
|Amazon||Temporary||Necessary to register in KDP select||Amazon Help|
|Google Play||OK||Google Play Help|
|iBooks Store||OK||iBooks Store Help|
In order to sell for free at Amazon it is necessary to register in "KDP select".
"Exclusivity" is necessary to register in KDP select.
However, free sales are temporary. There is a limit in the period during which books can be sold for free.
Maximum data size
The following is a comparison table of the maximum data size of books.
|Site name||Maximum data size||Reference source|
|Google Play||2GB||Google Play Help|
|iBooks Store||2GB||iBooks Store Help|
Minimum selling price
The following is a comparison table of the Minimum selling price.
|Site name||Minimum selling price||Reference source|
|Amazon||0.99 USD||Amazon Help|
|Google Play||0.01 USD||Google Play Help|
|iBooks Store||0.50 USD|
Notes on selling on Amazon
When selling on Amazon, the minimum selling price will be different depending on the data size. It is as follows.
|Data size of a book||Minimum selling price||Reference source|
|Less than 3MB||0.99USD||Amazon Help|
|Greater than or equal to 3MB and less than 10MB||1.99USD|
|10MB or greater||2.99USD|
By the way, the lowest price when selling at 70% royalty is 2.99USD
The following is a table summarizing the data formats supported by each site.
|Sitee name||Data format||Reference source|
|Amazon||EPUB, MOBI etc.||Amazon Help|
|Google Play||EPUB,PDF||Google Play Help|
EPUB is common to all sites. I recommend that you make a book in EPUB.
ISBN code is "International Standard Book Number". There is a column for entering the ISBN code when registering e-books.
However, ISBN number is not a mandatory item in any site