While I do sup regularly, no one likes to be told to do it! And anyway, it's closer to lunch time than to supper.
Welcome a-board.
I can only think of one book on sabre since the 1970s, and that's a new one by Ed Korfanty's coach. I haven't read it, but the man knows sabre, and frankly anything is welcome at this point!
PS Please see my signature.