1. Knuth. Skim it all then keep as a reference. Dive deep into anything that catches your fancy.
2. "Programming Pearls" by Jon L. Bentley IMO this is the most concise yet accessible gateway to the inner Mysteries of Computer Programming. Read between the lines, the prime thesis is implied not explicit.
3. "Thinking Forth" by Leo Brodie (Available as a PDF here: http://thinking-forth.sourceforge.net/ ) Most software is grossly too large. This book shows how to grok and extract the essence of your problem into minimal code. (Chuck Moore had a 3D wireframe CAD program he used to carry around as a deck of punch cards in his shirt pocket.)
2. "Programming Pearls" by Jon L. Bentley IMO this is the most concise yet accessible gateway to the inner Mysteries of Computer Programming. Read between the lines, the prime thesis is implied not explicit.
3. "Thinking Forth" by Leo Brodie (Available as a PDF here: http://thinking-forth.sourceforge.net/ ) Most software is grossly too large. This book shows how to grok and extract the essence of your problem into minimal code. (Chuck Moore had a 3D wireframe CAD program he used to carry around as a deck of punch cards in his shirt pocket.)