Here is a list of resources used for the Ex Nihilo worldbuilding workshop I ran at the Portal Fantasy Writing Workshop hosted by Writers SA.
A Complete Illustrated History of the Crusades and The Crusader Knights by Charles Phillips
Artefact by Mousehole Press
Bucket of Bolts by Mousehole Press
Faeries by Brian Frond & Alan Lee
Fiend Folio by TSR
Guide to Tolkien’s World: A Bestiary by David Day
Have You Heard About the Beast by Matt Sanders
Ironsworn by Shawn Tomkin
Mad Max: Fury Road by Vertigo
Monster Manual 1st edition by TSR
Monster Manual 4th Edition by Wizards of the Coast
Monster Manual 5th Edition by Wizards of the Coast
Table Fables by Madeline Hale
Table Fables II by Madeline Hale
Tales from the Arabian Nights by James Riordan
The Art of Mad Max by Abbie Bernstein
The Atlas of Legendary Lands by Judith A. McLeod
The Magical World of Peru by Javier Zapata Innocenzi
The Ultimate Encyclopaedia of Mythology by Arthur Cotterell & Rachel Storm
The World of Kong: A Natural History of Skull Island by Weta Workshop
Tome of Adventure Design by Frog God Games
Long Days & Pleasant Nights.
Stuart.