problems, and it also improves code readability for coders and architects who

are familiar with the patterns.

Before you dive into the material, you should be familiar with various

[Programming/Software Design Principles](http://webpro.github.io/programming-principles/).

Once you are familiar with these concepts you can start drilling down into patterns by any of the following approaches

- Using difficulty tags,`Difficulty-Beginner`,`Difficulty-Intermediate` &`Difficulty-Expert`.

- Using pattern categories,`Creational`,`Behavioral` and others.

- Search for a specific pattern. Can't find one? Please report a new pattern[here](https://github.com/iluwatar/java-design-patterns/issues).

If you are willing to contribute to the project you will find the relevant information in our[developer wiki](https://github.com/iluwatar/java-design-patterns/wiki).