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![Crusader Castles of the Teutonic Knights (1) AD 1230-1466: The Red Brick Castles of Prussia 1230-1466](/uploads/profile_image/e49/d5ffc5bc-d39b-48da-8b5d-6a8605ce7e49.jpg?m=1522326773)
Crusader Castles of the Teutonic Knights (1) AD 1230-1466: The Red Brick Castles of Prussia 1230-1466
Peter Dennis and S.R. Turnbull
Book
The Teutonic Knights were the most warlike of the religious orders, and this is reflected in the...
![Free as in Freedom: Richard Stallman's Crusade for Free Software](/uploads/profile_image/642/7aca15ba-ebcd-4c96-a219-25c376073642.jpg?m=1522362269)
Free as in Freedom: Richard Stallman's Crusade for Free Software
Book
Free as in Freedom interweaves biographical snapshots of GNU project founder Richard Stallman with...
![Slaughterhouse 5: The Children's Crusade - A Duty-dance with Death](/uploads/profile_image/204/726c027f-29b6-4d3c-afa7-a3fdb7a30204.jpg?m=1522335799)
Slaughterhouse 5: The Children's Crusade - A Duty-dance with Death
Book
Prisoner of war, optometrist, time-traveller - these are the life roles of Billy Pilgrim, hero of...