Head First Design Patterns: A Brain-Friendly Guide

Design Patterns: Elements of Reusable Object-Oriented Software (Addison-Wesley Professional Computing Series)

Head First Object-Oriented Analysis and Design

Clean Code: A Handbook of Agile Software Craftsmanship (Robert C. Martin Series)

Code Complete (Developer Best Practices)

Effective Java

Head First Java: A Brain-Friendly Guide

Head First Software Development

Clean Architecture: A Craftsman's Guide to Software Structure and Design (Robert C. Martin Series)

The Clean Coder: A Code of Conduct for Professional Programmers (Robert C. Martin Series)

Refactoring: Improving the Design of Existing Code (Addison-Wesley Signature Series (Fowler))