(adsbygoogle = window.adsbygoogle || []).push({}); i would like to become a proffesional hacker and i wonder how to begin

Do you have 10 years spare?

Well I suggest if your actually being serious and not just want to be a 1337 "h4x0r" then you start off with basic programming languages.

First you will need to learn C/C++, Java, Perl etc depending on rule number 1

Rule number 1:
What are you going to hack?
To be professional you will have to limit your boundaries.

but like Stxyzth said do you have 10 years to learn?
if not then you will most likely only be a script kiddy stealing porn passes /phishing or doing simple sql injections,

But hey make up your mind then get some "Real Books" not some shitty ebook from a 15 year old and start learning, before you know it you will atleast be able to do simple tasks.