He was also the chief editor and compiler of the official report of the 1912 Summer Olympics and wrote and/or edited or was a main contributor to some 30 books, including reports on the Olympic Games between 1920 and 1948 for the Swedish Olympic Committee.
He was also the chief editor and compiler of the official report of the 1912 Summer Olympics and made significant contributions to around 30 books, including reports on the Olympic Games between 1920 and 1948 for the Swedish Olympic Committee.