There are really only two remaining eBook formats, of the numerous types that were floating around some years ago.

  • The first and foremost, in terms of commercial sales, are the Kindle format(s), those being mobi, prc and azw.  Colloquially, these are called "mobi" by most people in the business.
  • The second, used by Apple, Adobe Digital Editions, Nook, Google Editions, Diesel, Kobo, etc., is epub.  Epub allows greater design flexibility than mobi, because it uses a more advanced level of html.
  • Two other formats, Palm (which is actually what's called a "wrapper") and .LIT, (which was Microsoft's attempt to gain entry into the eBook marketplace), are really not supported any longer in any significant numbers, and so we do not normally include conversion to those formats as part of our conversion quotes. Palm used a lot of formats that appear as PRC or PDB files on regular computers.
  • You might find this page from Bookbees really useful in determining which formats go with which books:  Bookbees Beginner's Guide Chart.

There are really only two remaining eBook formats, of the numerous types that were floating around some years ago.

  • The first and foremost, in terms of commercial sales, are the Kindle format(s), those being mobi, prc and azw.  Colloquially, these are called "mobi" by most people in the business.
  • The second, used by Apple, Adobe Digital Editions, Nook, Google Editions, Diesel, Kobo, etc., is epub.  Epub allows greater design flexibility than mobi, because it uses a more advanced level of html.
  • Two other formats, Palm (which is actually what's called a "wrapper") and .LIT, (which was Microsoft's attempt to gain entry into the eBook marketplace), are really not supported any longer in any significant numbers, and so we do not normally include conversion to those formats as part of our conversion quotes. Palm used a lot of formats that appear as PRC or PDB files on regular computers.
  • You might find this page from Bookbees really useful in determining which formats go with which books:  Bookbees Beginner's Guide Chart.

Important Fact!  

AmazonLogo

Booknook.biz is the ONLY company on the Official Amazon Publishing Service Providers and Resources List located in the USA or even in North America. 
We've made more than 4,000 eBooks and hundreds of print books.

(See it for yourself: the Amazon Publishing Service Providers and
Resources List in their Help pages, right here:  https://kdp.amazon.com/en_US/help/topic/G201723120 )