[1] Born to a Jewish family in Romania, Sachs first received art training as a child under his father.
[2] As a muralist and decorator, Sachs went on to design the interiors of many Los Angeles landmarks, including the Bullocks Wilshire building (now home to Southwestern Law School), Union Station, Los Angeles City Hall, and the Title Insurance and Trust Company Building.
An educator as well as an artist, Sachs also directed the Creative Art Students League of Los Angeles.
Sachs was active within the L.A. Jewish exile community of artists, writers, and filmmakers who had fled Europe due to the rise of Nazism, and later the Holocaust.
His friend, the architect Rudolph Schindler, designed Sachs' L.A. house, the Manola Court Apartments.