Robert Serber was a prominent American physicist. In 1941, Serber was recruited by J. Robert Oppenheimer to work on the Manhattan Project. Serber was tasked with explaining the basic principles and goals of the project to all incoming scientific staff. Moving to Los Alamos in 1943, he gave lecturers to members of the Manhattan Project about the design and construction of atomic bombs. His lecturers were known as the “Los Alamos Primer.