In the 1920s and 1930s, Richard W. Schabacker published several books which continued the work of Charles Dow and William Peter Hamilton in their books Stock Market Theory and Practice and Technical Market Analysis.
Richard W. Schabacker avaldas 1920. ja 1930. aastatel mitu raamatut, mis jätkasid Charles Dow' ja William Peter Hamiltoni töid "Aktsiaturgude teooria ja praktika" ("Stock Market Theory and Practice") ning "Turgude tehniline analüüs" ("Technical Market Analysis").