How he became a professional web developer

Answer 1

Study to your hearts content.....then study more and more. You'll want to study theses languages:
Html/html5, CSS, javascript, and jquery(optional). If you're interested in a book there's a book called html&css and it teaches html and css with pictures so you know what their doing step by step. Then when you're finally ready(may take weeks, months even years) you can look for jobs. (I recommend having an example of your work for the one who's hiring you).

Answer 2

After that, congratulations you're a web developer :)

Answer 3

thank you very much.. and I we'll do this