I don't have all the issues of Cosmic Circus, but I have enough of them to state my opinion that this series is not just "an art-literary journal" as indicated in the Kennedy Guide. Cosmic Circus was launched by Rey King (a.k.a. Regg King) and features a comic-book type story in the first issue. The series consistenty features comics, illustrations and poetry, including contributions from Mark and Vaughn Bode in issue five. The illustrations are typically underground in nature and some are similar to Jim Franklin's Armadillo comics or Buckwheat Florida Jr.'s Suds.
In any case, Cosmic Circus is kind of like a fanzine, kind of like an underground comic and kind of like an art-literary journal. It was one of the earlier publications of its type and features solid layout and design and interesting content.