Many people teach design patterns as a fundamental step to Object Oriented Programming. They are so universally seen as important that almost every single programming conference that I have been to has had at least one talk about them. They are quite often used as interview questions to test a candidate’s OOP knowledge. However, just like inheritance, they are not needed for OOP. And just like inheritance, they are a distraction rather than a foundation. Instead of focusing on patterns, I suggest focusing on learning about abstraction and communication. Why? Come and find out!