This fascinating book of 174 photos has been put out for distribution by the Haus am Checkpoint Charlie since the earliest days of the Wall's erection in Berlin and has been a powerful introductory guide to the events preceding East Germany's sealing off of West Berlin in August 1961 as well as the events directly concerned with that sealing off.  Powerful photos and text in multiple languages tell a history about man's incomprehensible inhumanity against felllow mankind, which should never be forgotten.