You could do everything books have to offer twice as fast on the internet by reading guides, programming documentation, and building code on your own. All while saving money on something that likely has a one time useful life.

But then what shall I fill my library with? :P

Anyway, those are all free e-books anyway :)

I didn't know Marijn Haverbeke wrote a book. He wrote our code highlighter here on Hawkee. It's called CodeMirror.