Kogan achieved reputation for his medals, plaquettes, gum catting. He created mainly sculptures and drawings with female nudes . The Moissey Kogan Archives of the European Cultural Foundation in Bonn collects and recorded the complete works of the artist and works it scientifically .

About Moissey (also Moise or Moshe) Kogan family (his father was a merchant), and about his education is little known.He was technically very gifted and had himself acquired his artistic skills. in 1889, he was taught by Simon Hollósy in the Hungarian artist colony of Nagybánya. Kogan came to Munich in 1903. He was a student of instructional and experimental Studio for free and applied art and formed temporarily with Wilhelm von Rümann at the Academy of fine arts Munich further. He became a member of New Artist' Group along with Bekhtejev, Javlensky and other artists-immigrants from the Russian Empire. He moved restlessly across Europe and temporarily in Paris found a second home.

In 1908 he exhibited for the first time in Paris at the Salon d'Automne. The expressionist group of artists-new Association of artists in Munich he joined in 1909 in the founding year. The art collector and patron Karl Ernst Osthaus, who sought in later years to Kogan, hired him as a teacher at the school of the Folkwang Museum to Hagen; Kogan was not long, moved back to Munich and then to Paris. At the invitation of Henry van de Velde, he taught briefly at the Weimar arts and crafts school. He led an itinerant life and moved his residence frequently, lived in the Switzerland and in Berlin, where Max Sauerlandt on him became aware of and encouraged the artist living in modest conditions. In the 20's, you could see Kogan works in exhibitions of the artist group Berliner secession.

Kogan maintained friendly relations with numerous artists such as Kandinsky, Jawlensky and Maillol. He was a member of the Salon d'Automne, served on the jury, and was elected Vice President of the sculpture Department in 1925. From 1925 until his death he changed his location several times between Paris and the Netherlands, where he was friends with several collectors and art dealers. In 1933, Kogan in Germany was ostracized as a Jewish artist. In the Berlin exhibition of "Degenerate art", some of his works were issued in 1938. Kogan withdrew more and more from the public. On February 22, 1943, he was deported from Paris and died some time later in Auschwitz concentration camp. Currently the Bonn Moissey Kogan strives archive to a scientific reappraisal of his work and the acquisition of his written estate.

Kogan began his artistic activity with cameos, medals, plaques, vases, embroideries and drawings. When he got the contacts to the sculptors Maillol, Rodin and Lehmbruck in Paris, he turned to the pure sculpture. While the female nude and its natural grace he was interested first and foremost. He created mainly small sculptures and reliefs in the neo-classical style. First Terra cotta was his preferred working material, plaster joined later. Many bronze castings have been no because that its financial resources were not sufficient. His sculptures were not dated and the birth year is often no longer detectable. Kogan was going to create like great sculptures, had but no Contracting Authority, which financed such works; He drew his sculpture designs on paper, which he kept rolled up. "The fragile grace of his characters, their sensual and at the same time spiritual body language are of Hellenic appealing hilarity. The inner restlessness, which has driven around Kogan throughout his life, came to rest in his art. The silent world of his file is timeless and claimed however in addition to the main currents of contemporary sculpture.

In the 20 years he made numerous wood and Linocuts and etchings. Kogan graphic works are devoted exclusively to the female figure. The imagery is the same as in the sculptural works. The soft contours and body lines determine the image composition, often at the expense of anatomical correctness. Even expressive expressions avoid all angular and square. In his drawings, he worked with chalk, charcoal and chalk pens.

Kogan works are in many museums,for example, in the Stedelijk Museum in Amsterdam, in the Duisburg Lehmbruck Museum, the Kunsthalle Bremen, in the art collection of the Essen Folkwang Museum, the National Gallery Moritzburg in Halle, the Hamburger Museum für Kunst und Gewerbe, in the collection of Hale in the Museum Ludwig in Cologne and at the STÄDTISCHE Galerie in the Lenbachhaus in Munich.