Wholeheartedly agree with recommendations for Kernighan and Bentley. I think there's one Kernighan book I don't own, and they are all gold (if old.) I'd sugges

Wholeheartedly agree with recommendations for Kernighan and Bentley. I think there's one Kernighan book I don't own, and they are all gold (if old.) I'd suggest anything and everything written by Gerald Weinberg, starting with what looks most appealing to you now. 'Making Software', edited by Wilson and Oram is chock-full of the latest research of its day (10 years ago.) It's dry, but it presents work of some top SE researchers. Following that group on twitter/Google scholar would bring you to the edge of what is studied in SE research.