Tham khảo Watchmen

Michael Eury; DickGiordano (2003). Dick Giordano: Changing Comics, One Day at a Time. TwoMorrows Publishing. ISBN 1893905276.
Thierry, Groensteen (2007). The System of Comics. University Press of Mississippi. ISBN 1-57806-925-5 Kiểm tra giá trị |isbn= (trợ giúp).
Robert C, Harvey (1996). The Art of the Comic Book: An Aesthetic History. University Press of Mississippi. ISBN 0878057587.
Geoff, Klock (2002). How to Read Superhero Comics and Why. Continuum. ISBN 0-8264-1419-2.
Mark, Salisbury (2000). Artists on Comics Art. Titan Books. ISBN 1-84023-186-6.
Richard, Reynolds (1992). Super Heroes: A Modern Mythology. B. T. Batsford Ltd. ISBN 0-7134-6560-3.
Roger, Sabin (1996; 2001). Comics, Comix and Graphic Novels. Phaidon Press. ISBN 0-7148-3993-0. Kiểm tra giá trị ngày tháng trong: |date= (trợ giúp)
Iain, Thomson (2005). Deconstructing the Hero. Comics As Philosophy. University Press of Mississippi. ISBN 1-57806-794-4.
Bradford W, Wright (2001). Comic Book Nation: The Transformation of Youth Culture in America. Johns Hopkins. ISBN 0-8018-7450-5.

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