.epub is the new format for e-books. .epub stands for the electronic publication. In September 2007, International Digital Publishing Forum declared it the new standard format for electronic readings. At October, 2011 with the declaration of EPUB 3 format made this standard the most popular reading format at kindle and personal computer.
The future of e-books is charming and with the fastest delivery on the computer .pdf format is loosing its monopoly.
epub File Format:
.epub format is free, smaller in size and flexible. Features like Inline raster and vector images, embedded metadata, DRM support and CSS styling made it more browser and SEO friendly.
How to open epub files:
To open epub files on your computer, you should have a desktop application to open .epub files. The application I recommend is the Stanza. The free and open source application to open .epub files on pc and Mac as well. You can download the application below.
Stanza may require Java Runtime environment to run and the standard Stanza application package will install Java Runtime support by itself.