Marketing/ advertising, wish fulfillment, cheap models, stylistic experimentation….
…there are certainly a lot of reasons to paint self-portraits. I consider it the most intriguing subgenre of figurative art.
Gentileschi, Self-portrait as the allegory of painting
Schiele (double self-portrait)
Schiele (as St. Sebastian)
Jaune Quick-to-See Smith
Kollwitz, Death and Woman
Kollwitz, Call of Death