His Rock and roll on compact disk, 1987: CIP t.p. (David Prakel)

Lighting, 2007: t.p. (David Präkel)

The mouse at the Albion Press, 2007: back cover (David Prakel)

LinkedIn website, December 4, 2012 David Prakel (writer and researcher; author of Rock 'n' roll on compact disc, Lighting; and co-author of The mouse at the Albion Press)

Prakel on photography website, December 4, 2012 (David G. Präkel)