Jan Olof Olsson

Jan Olof Lennart Olsson (pen name Jolo) (31 March 1920 – 30 April 1974) was a Swedish writer and a journalist for the Swedish newspaper Dagens Nyheter, where he elevated the short sketch to an art. He was married to Margareta Sjögren, a journalist at another Swedish newspaper.

Olsson is known for his books about World War I and World War II, Den okände soldaten (1965; The Unknown Soldier) and Någonstans i Sverige (1974; Somewhere in Sweden). He has also written several historical essays and many travel books. Olsson's writing is most notable for his ability to use vivid and picturesque situations to illustrate general patterns.