If not sure if Red Sox fans read books about other clubs and vise-a-versa. I have read books about my football club, Charlton, but would find very little interest in the history of say 'Hull City'. On the other hand I have read the biography of David Beckham, Paul Gasgoine and Bobby Moore.
Baseball literature is rare but not unknown in the UK. My local bookstore called Waterstones has a label for baseball between 'Badminton' and 'Basketball'. I have yet to see a baseball book in this section, plenty of basketball and boxing, one or two on badminton, biathlon and billiards. There was even a book on 'Beach volleyball!' But no baseball.
My own limited collection consists of: