The C Programming Language
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Ask HN: What three books impacted your career the most?
Ask HN: What are the most fundamental books on computer science?
Ask HN: Whats the best book on your favorite programming language or topic?
HeckFeck: If you're interested in something closer to the hardware than Python, why not read about the language that implements Python? It's a programming classic, very concise, easy to read and informative. It'll take you from basic control statements to eventually writing a memory allocator.
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Ask HN: What are the books that changed the perspective of your life?
kabdib: Probably the single most influential book on programming that I've read.