Will Henry was one of the pseudonyms of the prolific Paul Little, who liked to disguise his authorship of sexology 'case studies' under a variety of names, including Guenter Klow and Gerda Mundinger. Such reluctance to be identified seems particularly marked when he deals with the subject of erotic (adult) spanking, as in 'Whipping-Girls'. Here he covers most scenarios (mostly sapphic) in which women enjoy spanking and/or being spanked, in a multitude of cameos depicting such activity. It's well written, perhaps a little repetitive, and perhaps a little limited in its preponderance of F/F, although there are some F/M cases, and it will certainly appeal to lesbian enthusiasts of spanking. ( )