Welcome to MR, zaidshaban, and congratulations on you 600
Did you know that MR has free ebooks? They have been beautifully handcrafted by some very dedicated MR members. (I believe that they are better formatted than Google books.)
BBeB (Sony lrf format) and
ePub format
Check out these free ebook sites
feedbooks.com
manybooks.net
Free and for purchase ebooks
smashwords.com
baen.com
Plus Baen has a
great free library
You can even explore using
Calibre and Kovid, the creator, frequents the forums here. We even have a dedicated
Calibre forum.
Have fun exploring the forums and ask if you have any questions.