Few devotees of the form can approach Rembrandt Harmenszoon van Rijn's radical contributions to self-portraiture. Challenging the conventions enshrined by his predecessors, Rembrandt transformed the art into a fully realized medium capable of communicating emotional depth rather than favorably immortalizing one's likeness in the finest trappings of luxury. With more than 80 works spanning paintings, etchings, and drawings, the Dutchman's lifelong practice of self-portraiture functions as a means of concretizing that which is fleeting. Across four decades, one constant is particularly striking across media and styles-Rembrandt's dedication to presenting himself from multiple perspectives, celebrating the multiplicity of the individual and championing the unfiltered portrayal of emotional expression. Apart from the thematic concerns present within Rembrandt's suite of self-portraits, the works themselves are rich with technical innovation and experimentation. There is an unmistakable humanity present across the entirety of this oeuvre, each expressive brushstroke and obfuscated feature amounting to an unflinchingly honest characterization of himself, in all his foibles, contrasting states of feeling, and stages of life. This monograph renders all of Rembrandt's self-portraits - from his first experimentations at age twenty-two to his final self-portrait painted a year before his death - and stands testament to a life committed to revolutionizing painterly practice both in content and form.