The purpose of this thesis is to examine the relationship between Emil Helfferich (1878-1972) and Japan, focusing on Helferrichʼs work with Japanese at East Java, his experiences during his 1924 and 1940 visit to Japan. And also to introduce his private Japanese collection. Although Helfferich was not irrelevant to the National Socialists, the purpose of the proposed thesis is not to focus on any political views or theories, but examining various perspectives based on international Japanese studies.Emil Helfferich was born fourth of seven children from a merchant family in Neustadt in the former Land Rheinland-Pfalz, Germany. His eldest brother was Karl Helfferich, Vice Chancellor of the German Reich in the World War I and financial expert ...