It has come to our knowledge that Microsoft is working to add a new e-book store to Windows 10. There, the user will be able to find, download and buy books.
The first sign of the upcoming store was EPUB support in Edge. The Edge browser got native support for the EPUB format, so books can be read in Windows 10 without installing third-party software.
Edge will support bookmarks and a table of contents for the eBooks, so navigation through the opened book should be very easy. The built-in EPUB viewer supports theming and the ability to customize the font.
As of this writing, early e-book store access is available only in an internal build of Windows 10 Mobile. In the near future, this feature will reach Windows 10 for PCs and all the public Insider rings.