6 books in series

The Dark Crystal

The Dark Crystal is a 6-book series with 6 released primary works first released in 1982 with contributions by Brian Froud, Brian Holguin, Alex Sheikman, Lizzy John, Joshua Dysart, Matthew Dow Smith, J.M. Lee, Rupert Brown, J.J. Llewellyn, and Christopher Finch.

Jim Henson's The Dark Crystal: Creation Myths, Volume 1
Jim Henson's The Dark Crystal: Creation Myths, Volume 2
Jim Henson's The Dark Crystal: Creation Myths, Volume 3
Flames of the Dark Crystal
The World of the Dark Crystal: The Collector's Edition
Cover 3

The Making of the Dark Crystal