well i am looking for ebooks too to purchase. if you have one you can sell it to me. cause it is really tiring to keep looking for free websites to learn them and most specially we can't really find every thing that we want to know in a single websites.

i will want to have one ebook that will tackle all those topics in just one reading. and most specially leraning it in the niternet really hurts my eyes. i just want to read them on papers or books.