Dr. Seuss Enterprises were correct to sue Comic Mix for copyright infringement of “Oh The Places You’ll Boldy Go!”. The book clearly has the same art style and type font as Dr. Seuss’s book “Oh The Places You’ll Go!”. For Comic Mix’s book to be a parody without infringement it would need to have permission from the rights holder, which is Dr. Seuss Enterprises. Some individuals would see Comic Mix’s book as fair use since they do have the right to express themselves in any fashion. For me the fact that they heavily relied on the original work to create their parody which embarks a resemblance, Comic Mix were stepping on legal toes. 

Image from Misfortuneofknowing.