In the mid-1980s I was asked by the editor of Borgo Press, who was about to release the first edition of my Wilson bibliography The Work of Colin Wilson (San Bernardino: Borgo Press, 1989), to edit and introduce a companion volume of his essays, Existentially Speaking: essays on the philosophy of literature,for the series “I. O. Evans Studies in the Philosophy and Criticism of Literature”. This was eventually published, as number 7 in the series, in September 1989.
Stanley, Colin. "Existentially Speaking: essays on the philosophy of literature". The Literary Encyclopedia. First published 14 November 2012
[http://www.litencyc.com/php/sworks.php?rec=true&UID=23998, accessed 26 May 2017.]