Thus was born the "Diabolik format" (a small 12 x 17 cms book), Kenneth D. Nordin, Joseph Ursitti, Understanding the funnies: critical interpretations of comic strips, Procopian Press, 1997 Luca Raffaelli, Il fumetto: un manuale per capire, un saggio per riflettere, Il Saggiatore,1997 which proved popular with other publications in the same genre.