Patterns are best learned when you try to apply it into your own projects, so it's best to have time for consulting when you have a pattern-course.
Writer workshops is a good way to develop patterns.
Mostly about the different forms in which a pattern can be written. A real life pattern about skiing. Setting the Stage by James O. Coplien Page 301 A column by James Coplien, about what patterns are and their origin, followed by a description of Counted Body Pattern . Some notes on why pattern languages might not work. Interesting that Alexander himself came to the conclusion that it didn't work after others tried out his pattern language and made poor results.