Duffy (Orion Books, 2014; Paperback) Notes on this edition: Dan Kavanagh. Duffy. London: Orion Books, 2014. Pp. 192 + . 19.7 x 12.8 cm. ISBN: 9781409150183. Orion Books republished all four Dan Kavanagh novels in hardback and paperback. This is the Orion paperback edition of the first Kavanagh novel Duffy, originally published by Jonathan Cape (1980).