Design Patterns Explained with Food In C#

 This modern approach to the legendary GOF Design Patterns book from Wes Doyle is a set of YouTube videos using the C# language with a novel, culinary, twist.

The Gang of Four Design patterns book first published in 1994 might be still relevant as far as the core concepts are concerned, but the examples and languages used in the book, Smaltalk/C++ and GUI applications are nevertheless somewhat dated. 

full article on -programmer.info