Refactoring: Improving the Design of Existing Code
by martin-fowler
The definitive guide to improving code structure without changing behavior. Fowler catalogs refactoring techniques with clear examples, making messy code maintainable.
refactoring
(3)Tidy First?
by kent-beck
A compact guide to code tidying—small, behavior-preserving changes that make code easier to understand and modify before making structural changes.
Refactoring — Not on the Backlog!
by ron-jeffries
Refactoring should happen continuously during feature work, not as separate backlog items. Deferring code cleanup creates a vicious cycle that slows velocity and rarely gets approved.