I generally use amazon for buying books.
I have purchased many books from amazon till now and I am totally satisfied with its service.
I always got above 25% discount in almost every purchase of books that I was in need of and I am very happy with that.
I gets very excited sometimes when I see 40% Discount on my books.
thats a nice feeling when you get a new book in almost half price.
its prime delivery was very fast.
I ordered and got the stuff just after two days.
though its prime membership is paid.
but it is worth buying for those who shop atleast once in a week.
I used free trial of prime membership.
I recommend it to all.