In no particular order. (coz ordering them is impossible)
- Hammock-Driven Development by Rich Hickey
- Simple made Easy by Rick Hickey
- Architecture the Lost Years by Robert Martin
- Therapeutic Refactoring by Katrina Owen
- Y Not - Adventures in Functional Programming by Jim Weirich
- Decoupling from Rails by Jim Weirich
- Nothing is Something by Sandi Metz
- What the heck is an event loop anyways? by Philip Roberts