Self portrait on both sides of Cartesian gap

The article presents an analysis of philosophical importance of the self-portrait, an artefact which has been treated as an ego - document par excellence, document of selfawareness. The self-portrait is a product of specific artificial process that means selfpresentation, self-creation and self-investigation in the same time. That process is a way of visual self-identification and self-constitution and that kind of creation forces an author, subject of visualization, to try to stand on both sides of the Cartesian gap - being to himself both subject and object in the same time.