: The LJYC-ME/Learn-Design-Patterns repository serves as a reference guide based on the book's teachings.

The guide is available on GitHub, a popular platform for developers to share and collaborate on code. You can access the guide for free and start learning about design patterns today.

: The official website offers free, interactive explanations and code examples in multiple languages (Java, C++, Python, C#, PHP, Go, etc.).

Last updated: April 2026 | Version 3.2