The Art of Readable Code
Dustin Boswell & Trevor Foucher
The Timeless Way of Building
Christopher Alexander
Tomorrow, and Tomorrow, and Tomorrow
Gabrielle Zevin
Design Patterns: Elements of Reusable Object-Oriented Software
Erich Gamma & Richard Helm & Ralph Johnson & John M. Vlissides
Agile Project Management: Creating Innovative Products
Jim Highsmith
Agile Software Development Series (1)