Reddit reviews I33: Fencing in the Style of the Walpurgis Manuscript
We found 1 Reddit comments about I33: Fencing in the Style of the Walpurgis Manuscript. Here are the top ones, ranked by their Reddit score.
Dimicator on facebook is one place for pretty great info on sword and buckler.
As for books... You could go with the pretty outdated Sword and Buckler book from Chivalry Bookshelf. Found here on Amazon.
Then there is new book (BTW thanks for having me look this up, I didn't even know this existed)
Next in line would be Manciolino.
You could also try looking at Lignitzer through Wiktenauer.com. That is going to more updated than David Lindholm's books (two links btw), or Christian Tobler's. But, it is nice to have physical copies.