This article deals with applied psychology of handwriting, in particular with the use of graphology. In addition to a basic summary of contemporary approaches in the area, selected researches and foreign studies are evaluated. The article also presents results of the PORP research (Projection of Personality Traits in Handwriting, University of South Bohemia 2007) aimed at the evaluation of psychodiagnostic potential of handwriting analysis using 5-factor personality model (Big Five) and comments upon graphological methodology PORP-GRAF and possibilities of further development of the method within psychodiagnostical disciplines.