Portfolios in print media include "Pref" (2009), David Leddick's "The Nude Male: 21st Century Visions" (2008), "Gab" (2008) and "Mein schwules Auge 3" (2006). Brian Paul Clamp, author of an essay in Travis’s recent monograph, "Along the Appian Way" (2007), writes of an “otherworld this body of work where the real and the imaginary intersect.” A second monograph, "Parks and Gardens in Lazio: A Meditation," appeared in 2008. Writing in the exhibition catalogue to the show in Castelgandolfo, Stefano Abbadessa Mercanti finds in his art “an unusual character that recalls the great works of the past, while also addressing contemporary issues.”