We’ve been looking a eBooks on a site called project Gutenberg that gives you free eBooks in many Formats.
Gutenberg uses many formats such as :- HTML, EPUB, Kindle, Plucker.
a link to a Book called The Mentor, it shows the variety of formats http://www.gutenberg.org/ebooks/44367
you can read Ebooks on devices such as :- Pc, Kindle tablet, Tablets, Smartphones.
link to meny devices that you can use to read eBooks http://products.pricerunner.co.uk/results/query?cateid=1156&q=Ebook+Reader&gclid=CLC5qs-tm7sCFWzHtAodTHMAEg
you can download eBooks in meny places :- Project Gutenberg, Amazon, iTunes, Google Play, Kobobooks
the software that is needed to use eBooks is:- notepad, iBooks, Kindle