Graphoanalysis is a form of the pseudoscience graphology in which an analysis of strokes in handwriting of any language or note taking system, and its deviation from "textbook standard", claim to make predictions of psychological traits. It was created by Milton N Bunker who first studied handwriting analysis around 1913. He formed the American Grapho Analysis Society by 1929, and in 1949 he incorporated the International Grapho Analysis Society (now the International Graphoanalysis Society or IGAS). Since 1961, IGAS has been the sole owner of all material, and intellectual property rights relating to graphoanalysis.
The roots of graphoanalysis are in the writings of Abbe Michon, and influences of Crépieux-Jamin, and other European graphologers but very little material published by Bunker, The American Grapho Analysis Society, or The International Graphoanalysis Society acknowledges these roots. Published reliability studies  on graphoanalysis have used very few analysts, typically less than five. The IGAS Trait Norm Project published in 1980 had poor research design and methodology.
- IGAS website Company page
- Michon, l'Abbe Jean Hyppolyte Systéme de Graphologie
- Crépieux-Jamin, J L'A B C de la Grphologie, Paris
- Pulver, Max Symbolik der Handschrift
- Galbraith, Dorothy & Wilson, Warner Reliability of the Graphoanalytic Approach to Handwriting Analysis. Perceptual And Motor Skills 1964, 19(2), 615-618.
- Vestewig, Richard; Santee, Aileen H & Moss, Martin K Validity and Student Acceptance of a Graphoanalytic Approach to Personality. Journal of Personality Assessment, 1976, 40 (6), 592-598.
- Stockholm, Emile (1980) Statistical Data For Basic Traits of Graphoanalysis: IGAS Trait Norm Project. Perceptual and Motor Skills, 1980, 51, 220-222