Four Letters of Love by NiallWilliams Paperback, Published 1998 by Farrar, Straus And Giroux ISBN-13: 978-0-9652395-5-4, ISBN: 0-9652395-5-1
The Fall of Light by NiallWilliams Paperback, 384 Pages, Published 2003 by Grand Central Publishing ISBN-13: 978-0-446-67987-9, ISBN: 0-446-67987-9
As It Is in Heaven(Reprint) by NiallWilliams Paperback, 332 Pages, Published 2000 by Grand Central Publishing ISBN-13: 978-0-446-67601-4, ISBN: 0-446-67601-2
John by NiallWilliams Hardcover, 288 Pages, Published 2008 by Bloomsbury Publishing Plc ISBN-13: 978-0-7475-9436-9, ISBN: 0-7475-9436-8
As It Is in Heaven by NiallWilliams Paperback, Published 1999 by Picador Books ISBN-13: 978-0-330-39238-9, ISBN: 0-330-39238-7
Four Letters of Love(Reprint) by NiallWilliams Paperback, 288 Pages, Published 1998 by Grand Central Publishing ISBN-13: 978-0-446-67493-5, ISBN: 0-446-67493-1
Four Letters of Love(Reprint) A Novel by NiallWilliams, John Hurt Paperback, 368 Pages, Published 2015 by Bloomsbury Usa ISBN-13: 978-1-63286-318-8, ISBN: 1-63286-318-9
John(1st Edition) A Novel by NiallWilliams Hardcover, 288 Pages, Published 2008 by Bloomsbury Usa ISBN-13: 978-1-59691-467-4, ISBN: 1-59691-467-X
Four Letters of Love(Updated) (Spanish Edition) by NiallWilliams Paperback, 352 Pages, Published 2006 by Pan Books Ltd ISBN-13: 978-0-330-35269-7, ISBN: 0-330-35269-5