List of books reference
Dáithí Ó hÓgáin, The lore of Ireland An encyclopaedia of myth, legend and Romance, Boydell Press; 1st edition, 2006
Denise Alvarado, The voodoo doll spellbook, Weiser Books; Reprint edition, 2014
Geoffrey Abbott, The book of execution, Hardline book publishing, 1994
John and Caitlin Matthews, The Element Encyclopaedia of Magical Creatures, HarperCollins Publishers, 2013
John Lewis, Means to kill, Hardline book publishing, 1994
Judika Illes, Encyclopaedia of Spirits the ultimate guide to the magic of fairies, genies, demons, ghosts, gods and goddesses, HarperCollins Publishers, 2009
Judika Illes, The element encyclopaedia of 5000 spells, HarperCollins Publishers, 2004
Nozedar Adele, The element encyclopaedia of secret signs and symbols, HarperCollins Publishers, 2008
Rodney Castleden, The element encyclopaedia of the Celts, HarperCollins Publishers, 2012
Rosemary Ellen Guiley, the Encyclopaedia of angels, Checkmark Books; 2nd ed. edition, 2009
Rosemary Ellen Guiley, the Encyclopaedia of Demons and Demonology, Checkmark Books, 2009
Rosemary Ellen Guiley, magic and alchemy, Facts On File, 2006
Rosemary Ellen Guiley, The complete vampire companion, Macmillan General Reference, 1994