Real Estate: How to Find Auctions, Foreclosures, and the Cheapest Properties

Agile Coaching

The Rspec Book: Behaviour Driven Development with RSpec, Cucumber, and Friends (Facets of Ruby)

Debug It!: Find, Repair, and Prevent Bugs in Your Code (Pragmatic Programmers)

Metaprogramming Ruby: Program Like the Ruby Pros

Language Implementation Patterns: Create Your Own Domain-Specific and General Programming Languages (Pragmatic Programmers)

Manage Your Project Portfolio: Increase Your Capacity and Finish More Projects

The Passionate Programmer: Creating a Remarkable Career in Software Development (Pragmatic Life)

Practical Programming: An Introduction to Computer Science Using Python (Pragmatic Programmers)