Crowley's style in Aegypt suggests John Fowles's Daniel Martin (1977) in its richness and complexity, a connection touted by Crowley's publisher, Bantam, which also compares him to John Updike and John Gardner.

Aegypt's Author's Note, however, acknowledges Crowley's borrowings from other authors, among them: Joseph Campbell, Mircea Eliade, Peter French, Giorgio di Santillana, and especially Dame Frances Yates whose The Art of Memory provides Crowley with one of the most important themes in his novel. Beyond these stylistic and authorial acknowledgements, Crowley's Aegypt at times shows its debt to genres as diverse as Marchette Chute's documentary biography Shakespeare of London and Joyce Carol Oates's novels Bellefleur (1980), A Bloodsmoor Romance (1982), and Mysteries of Winterthurn (1986).