After I made this post I read back to see what i have missed. Sorry to be slow on the uptake, but I will mail, free of charge, to anyone anywhere any of the books I recommend. I will only send out those that I will miss when they are gone! That's what books are for, IMO.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)