41 SQUIERS, Carol (ed.)
[1990] The Critical Image Essays on Contemporary Photography
Bay Press, Seattle

42 SPARKMAN, Russell
[1997] Essentials of Digital Photography with CD
New Riders Publishers, Indiana

43 STEWART, Maureen
[1993] "Digital Photography: What you Need to Know
Electronic Composition and Imaging, Vol. 7, Nº 3

44 TINSLEY, John
[1997] Guide to Digital Imaging for the Freelance Photographer
BFP Books

45 VACCARI, Franco
[1981] La Photographie et L'Inconscient Technologique
Créatis, Paris (France)

46 Various Authors
[1996] Cyber Design: Photography
Rockport Publishers

47 Various Authors
[1991] Digital Dialogues: Photography in the Age of Cyberspace
TEN 8, col. "Photo Paperback", Vol. 2, Nº 2,
Birmingham (England)

48 Various Authors
[1992] "Digital Photography"
Random House (New York)

49 Various Authors
[1994] Digital Photoillustration
Van Nostrand Reinhold Company (New York)

50 Various Authors
[1996] "Double Takes on Digital Photography"
Scientific American, Vol. 1, Nº 275 (July)