(BCA, Hons) was second President of the Australian Horror Writers Association (Sept2010-Sept 2011). His story "Uncharted" was nominated for a 2004 Ditmar Award for Best Novella & received Honourable Mention in The Year's Best Horror and Fantasy (17th annual) edited by Ellen Datlow et al. He has also been nominated for a William Atheling Award for Criticism for his work on Australian writer Terry Dowling.
He is editor of Terror Australis: Best Australian Horror (Sydney: Coronet, 1993); author Harlan Ellison/Terry Dowling/Jack Dann: A Bibliographic Checklist (Sydney: R'lyeh Texts, 1996); co-author (with S.T. Joshi) H.P. Lovecraft and Lovecraft Criticism: A Bibliographical Supplement 1980-84 (West Warwick, RI: Necronomicon Press, 1985) author, Brian Lumley: A New Bibliography (Sydney: Dark Press, 1984; CA: Borgo Press, 1986).
He is co-editor (with chief editor Phillip A. Ellis) of bi-annual journal Studies in Australian Weird Fiction; and Chief Editor of the Sword and Sorcery & Weird Fiction Terminus amateur press association and also contributes to Esoteric Order of Dagon A.P.A.
Leigh has contributed to scholarly works on speculative fiction including Supernatural Literature of the World (Greenwood Press, 2005, ST Joshi and Stefan J. Dziemaniwicz (eds)). Other critical writings and interviews with leading writers in sf have appeared in many magazines from the Australian Horror and Fantasy Magazine to Twilit Grotto. Leigh's recent critical essays appear in such volumes as Gary William Crawford (ed) Ramsey Campbell: Critical Essays on the Master of Modern Horror (Scarecrow Press, 2014); Sam Gafford (ed) Sargasso: The Journal of William Hope Hodgson Studies No 1 (2013); Danel Olson (ed) 21st Century Gothic (Scarecrow Press, 2011); Ben Szsumkyj (ed) Robert Bloch: The Man Who Collected Psychos (McFarland, 2011) and in such journals as Lovecraft Annual and Studies in the Fantastic.
Leigh's horror fiction has appeared in various magazines and anthologies. New work is forthcoming in such anthologies as From Secret Asia's Blackest Heart, The Revision Mythos and The Derleth Mythos and in such magazines as Strange Detective Stories.
Leigh's weird poetry is collected in Spores from Sharnoth and Other Madnesses (P'rea Press, 2008) which US journal Dead Reckonings said "places Blackmore among the leading weird poets of our era." His first collection of horror fiction, Nightmare Logic, is forthcoming.
Leigh is a regular reviewer of horror fiction and nonfiction for the US journal Dead reckonings (Hippocampus Press).
He formerly co-edited (with Glayne Louise) Mythopoeia: The Newsletter of Dymocks Science Fiction & Fantasy (1995-97) and Terror Australis: The Australian Horror & Fantasy Magazine (with Chris G.C. Sequeira and B.J. Stevens) (1987-92). He co-founded The Sydney Horror Writers & Artists Society (The Gargoyle Club) and has been NSW Correspondent for Australian SF Writers News, local representative for Horror Writers of America, and a judge on the annual George Turner Awards. He is an active member of the Sydney Passengers Sherlock Holmes Society.
His non-writing pursuits include specto-situationism, mixed media collage & high magick. An initiate of Ordo Templi Orientis, Leigh founded Aurora Australis Thelemic Temple, and co-facilitates MoonSkin coven (2006-2011). His regular column on matters magical (with Margi Curtis) has appeared in Spellcraft and Black: Australia's Dark Culture magazines.
Leigh runs his own editing business, Proof Perfect Editorial Services (based in Wollongong, Australia) and welcomes contact from authors who wish their manuscripts assessed or copyedited. (See video right)