Graphology handwriting analysis has spawned several systems. Integrative graphology focuses on strokes and their relation to personality. Graphoanalysis was the most influential system in the United States, between 1929 and 2000. The Sistema de Xandró is another method of integrative graphology. Holistic graphology is based on form, movement, and use of space. The psychogram is another method which uses specific diagrams to analyze handwriting. The Personal Worth Chart is one such method developed by the Handwriting Consultants of San Diego during the early 1980s. The psychograph is an additional psychogram method. was developed by Leslie King during the 1970s. The Wittlich
Graphology Ludwig Klages founded and published his finding in "Zeitschrift für Menschenkunde" ("Journal for the Study of Mankind"). His major contribution to the field can be found in "Handschrift und Charakter". Thea Stein Lewinson and J. Zubin modified Klage's ideas, based upon their experience working for the U.S. government, publishing their method in 1942. In 1929 Milton Bunker founded The American Grapho Analysis Society teaching graphoanalysis. This organization and its system split the American graphology world in two. Students had to choose between graphoanalysis or holistic graphology. While hard data is lacking, anecdotal evidence indicates that 10% of the members of