I'm amazed at the amount of "this is crap because I already knew it" comments in the articles comment section. Sure one sees this a lot on the web but it seems to me that it's becoming more and more common.

As a hobbyist in the field I find articles like these very interesting. However I find it hard to find larger collections, or even better books on such subjects. So much of what I come across is bloated with crap. Very seldom can I find collection focusing only on the why and how. Any tips?