Coles, S., & Spiekermann, E. (2021). The geometry of type: The anatomy of 100 essential typefaces (First published in paperback in 2016, reprinted in 2021.). Thames & Hudson.
Chicago Style (17th ed.) CitationColes, Stephen, and Erik Spiekermann. The Geometry of Type: The Anatomy of 100 Essential Typefaces. First published in paperback in 2016, reprinted in 2021. London: Thames & Hudson, 2021.
MLA (9th ed.) CitationColes, Stephen, and Erik Spiekermann. The Geometry of Type: The Anatomy of 100 Essential Typefaces. First published in paperback in 2016, reprinted in 2021. Thames & Hudson, 2021.
Warning: These citations may not always be 100% accurate.