Note: Vital data from Library of Congress, citing 2016 email from Cluff. From her website July 2022: Sara Jo Cluff writes the light "to make people laugh" and alter ego Jo Cassidy writes the dark "to creep the crap out of people". WorldCat records show that some works by Cluff belong in the speculative fiction database, and suggest that she targets a younger audience as Cluff; eg, OCLC 1137264697.