The best format for opening products is pgn files:
My products are of high quality and contain extensive verbal comments.
Available Products
The Four Knights Sicilian
Anti-Morra Gambit
Product + Event
I offer my Anti-Trompowsky repertoire as a combination of webinar and pgn file.
Chessable
I have finished a work on the Bayonet Attack of the King’s Indian Defense. It will be published, once I will have received the opportunity to record the videos. Here part 1 and part 2 of the introduction. Right now, I am working on a second project on the King’s Indian Sidelines.
Future Project
Caro-Kann Master Class
I will start this project, once I collected enough interested persons. I don’t actively promote it right now, as I am busy with the the Chessable projects and my Webinars. If you are interested, you can put your name on the waiting list.
That said, regular Caro-Kann training is available online. I have done it with numerous groups and individuals, so far.