Programming/development Books

So here's the deal. I dropped out of university... a few times... and have fallen back upon writing software for a living. I'm very conscious of the fact that having never studied it at college I am probably not following best practices etc.

I work mainly in C# but would like to expand my knowledge and study properly on my own. Anyone suggest any good texts for me?

tl/dr: Good programming books for students?

>>4
He said he's a dropout, not a total retard. Nobody will buy your autopublished scam, mentifex.