I have no idea why the synopsis for the Gatherum says it is a reference for the RPG. Ignore that. This is a comprehensive "behind the scenes" book that is a "must have" for the diehard Elfquest fan. There are several interviews with the Pinis (from 1981 to, I believe, 1988), many articles about EQ, written at the time that the "Original Quest" was still being written, and much artwork by Wendy that you won't find anywhere else (except, of course, in the two Gatherums which this is a compilation of, and which are now long out of print.) The BIG (and it is) Gatherum offers an invaluable glimpse at the evolution of Elfquest. Highly recommended.
The Gatherum provides more information than one person should ever need about the authors, the story, and the work and creative power that went into making one of the greatest series of graphic novels existing today. It is entertaining and any ElfQuest fan will love it!