"Heads-Up Baseball: Playing the Game One Pitch at a Time" by whoops, I loaned it out and forgewt authors. it is referenced in many other posts re the mental game.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .