If you have an interest in Wet plate then I would look out for one of Johns workshops. Wet plate was something of a want to try and I followed many threads on the web along with Youtube. It was something I wanted to try and this gave me the opportunity. I really enjoyed the workshop and seeing even the ones that went wrong come up is something magical. It is something that I will be continuing as soon as my house move is sorted and I can get my darkroom up and running.