As far as I can tell, Cycle of the Werewolf was Stephen King's first venture into an illustrated novel, a marriage of a story and graphics. It's cool that he tries different things, new mediums to express his thoughts for the Constant Reader. Why not? It makes sense. That said I am not the best judge of this method. I have a preference for reading the words and letting my brain do the visualizing. 
 My rating skews to low side compared with many. I may never have bothered reading this Werewolf tale, but what kind of Constant Reader would that make me? If you've seen the movie Silver Bullet, then you know the story (excepting the Hollywood tweaks). This is one case where the movie stretches the length, because the book is very short. If it weren't for the graphics, it wouldn't make for a novella, and belong only as part of a short story collection. While researching, I learned this was originally meant to be produced in calendar form. I like that idea. Each month of a year depicts an artist's drawing with a vignette by Stephen King. A full moon rises, the werewolf terrorizes. Somebody in the little town of Tarker's Mill hides a secret. 
 The story is sparse. Too few words for a book, too many for a calendar. As a book with graphics it almost works as a collector's item. The big But is that the drawings don't say much outside of the plot, and the writing does not express SK's true talent, until the story finally breaks the mold around the middle of the year. The simple wording and plot can be attributed to the calendar concept. In my opinion, the book format doesn't quite work, but by the time the writing and paintings were complete, the die was cast. 
 Final note: Constant Readers should check it out, just because. Considered as a keeper? A nice one for the serious King collectors.