Some suggestions for taking your reading further based on my hiring week presentation
- POODR - SOLID/Encapsulation/OOD
- The RSpec book - TDD/BDD. Note that this uses RSpec 2 for examples, it will be updated soon but until then principles still apply
- Refactoring in Ruby - Refactoring
- Outside in Testing
- Design Patterns in Ruby - Design Patterns
- Javascript Design Patterns
- Programming Javascript Appliations
- Javascript for All of Us blog
- It's not a bad idea to be aware of ECMA 6's upcoming features as well