Career
In the days before the Second World War, Nielsen traveled the world. His travel accounts, primarily published by Gyldendalske Boghandel, Copenhagen, in Denmark, were quite popular and issued in a variety of editions and bindings.
In the days before the Second World War, Nielsen traveled the world. His travel accounts, primarily published by Gyldendalske Boghandel, Copenhagen, in Denmark, were quite popular and issued in a variety of editions and bindings.