These are a collection of various podcasts from Andy Smith which are somewhat introductory but very well done in my opinion.
He allows the latest 10 podcasts to be downloaded, and when a new one is uploaded the old one goes into the archive and must be bought. I downloaded these when they were free but if there is enough interest we could organise a group buy to get the whole collection
There are 10 episodes here running to nearly 2 hours of content.
More courses from the same author: Andy Smith