OOP 8 Immutability: Architecting Safer, Thread-Safe Systems Jan 4, 2026 Object-Oriented Design Patterns Jan 4, 2026 Concurrent and Distributed Design Patterns Jan 4, 2026 The Art of Clean Code Jan 3, 2026 API Design Principles Jan 3, 2026 Refactoring and Code Smells Jan 2, 2026 Object-Oriented Design Heuristics Jan 2, 2026 Object-Oriented Design Principles Jan 1, 2026