Recommendations from others are noted in (parentheses). The rest are my personal recommendations.
- The Pragmatic Programmer - Hunt & Thomas
- Design Patterns - Gamma et al.
- Domain-Driven Design - Evans
- Implementing Domain-Driven Design - Vernon (via @mbthegreat)
- Coders at Work - Seibel
- Elements of Programming Style - Kernighan & Plauger
- Enterprise Design Patterns - Fowler
- Refactoring - Fowler
- Structure and Interpretation of Computer Programs - Abelson, Sussman & Sussman
- The C Programming Language - Kernighan (Good for Non-C programmers, too!)
- Code Complete - McConnell
- The Mythical Man Month - Brooks
- Please Understand Me - Keirsey
- Getting Real - Fried
- You're My Favorite Client - Monteiro (via @jasonsee)
- The One Minute Manager - Blanchard & Johnson (via Sara)
- The Lean Startup - Ries (via @leilis and @benbalter)
- Here Comes Everybody: The Power of Organizing Without Organizations - Shirky (via @benbalter)
- Being Geek: The Software Developer's Career Handbook - Lopp (via @benbalter)
- The Innovator's Dilemma - Christensen (via @benbalter and @edgesmash)
- Producing Open Source Software - Fogel (via @benbalter)
- Peopleware: Productive Projects and Teams - DeMarco (via @benbalter and @edgesmash)
- The Wealth of Networks: How Social Production Transforms Markets and Freedom - Benkler (via @benbalter)
- The Cathedral & the Bazaar: Musings on Linux and Open Source by an Accidental Revolutionary - Raymond (via @benbalter)
- The Master Switch: The Rise and Fall of Information Empires - Wu (via @konklone and @benbalter)
- Hackers: Heroes of the Computer Revolution - Levy (via @benbalter)
- The Design of Everyday Things - Norman
- Don't Make Me Think - Krug
- The Visual Display of Quantitative Information - Tufte
- Grid Systems in Graphic Design - Muller-Brockmann
- Semiology of Graphics: Diagrams, Networks, Maps - Bertin (via @tmcw)
- Made to Stick - Heath (via @benbalter)
- Users, Not Customers - Shapiro (via @benbalter)
- The Long Tail - Anderson (via @benbalter)
- Principles of Marketing - Kotler & Armstrong (via @eshinn)
- Content Strategy at Work: Real-world Stories to Strengthen Every Interactive Project - Bloomstein (via @eshinn)
- The Elements of Style - Strunk & White
- Zen Mind, Beginner's Mind - Suzuki
- Clock Of The Long Now (via @timmcdaniels)
- Mindfulness in Plain English - Gunaratana (via Jerrica)
- Neuromancer - Gibson
Updated!