[1] One of his early novels, The Affirmation, concerns a traumatized man who apparently flips into a delusional world in which he experiences a lengthy voyage to an archipelago of exotic islands.

[4] The state of mind depicted in this novel is similar to that of the delusional fantasy-prone psychoanalytic patient ("Kirk Allen") in Robert Lindner's The Fifty-Minute Hour, or Jack London's tortured prisoner in The Star Rover.

Priest also dealt with delusional alternate realities in A Dream of Wessex, in which a group of experimenters for a British government project are brain-wired to a hypnosis machine and jointly participate in an imaginary but as-real-as-real future in a vacation island off the coast of a Sovietized Britain.

Priest received payment while Doctor Who producer John Nathan-Turner and script editor Eric Saward were forced to pen a letter of apology for the treatment of the writer.

As well as the eXistenZ novelization (which undermined the pseudonym by including Priest's biography on the pre-title page), he has novelised the movies Mona Lisa (as John Luther Novak) and Short Circuit (as Colin Wedgelock).

Priest wrote for The Guardian from 2002, largely obituaries of such figures as Robert Sheckley, Stanislaw Lem, Jack Williamson, Diana Wynne Jones, John Christopher and many more.

Priest's 1979 essay "The Making of the Lesbian Horse" (published as a Novacon chapbook) takes a humorous look at the roots of his acclaimed novel Inverted World.

It followed "themes of personal history and memory (which) through the lens of a more antagonistic and critical form of interpretation, aims to point towards an overtly positive viewpoint on contemporary art practice over any traditional melancholy fixation".