(1) (1975) Drawings by Michelangelo, London: British Museum Publications, soft cover, illustrated in black and white.

(2) Loretta Santini (1974) Michelangelo: Maler, Bildhauer, Architekt, Narni Terni: Plurigraf, soft cover, illustrated in colour, text in German.

(3) Ludwig Goldscheider (1959) Michelangelo: Gemälde, Skulpturen, Archtekturen, Gesamtausgabe, Cologne: Phaidon, hard cover without dust jacket, illustrated in black and white.

(4) Matthias Wivel (2017) Michelangelo & Sebastiano, London: National Gallery, hard cover with dust jacket, illustrated in colour.

(5) Patricia Lee Rubin and Alison Wright (1999) Renaissance Florence: The Art of the 1470s, London: National Gallery, soft cover with dust jacket, illustrated in colour.

(6) Frank Zöllner, Christof Thoenes and Thomas Pöpper (2007) Michelangelo: Complete Works, Cologne: Taschen, hard cover with dust jacket, illustrated in colour.