Quinn has since published several critical studies of Mormon hierarchy, including his three-volume work of "The Mormon Hierarchy: Origins of Power", "The Mormon Hierarchy: Extensions of Power", and "The Mormon Hierarchy: Wealth and Corporate Power." He also authored the 1996 book "Same-Sex Dynamics Among Nineteenth-Century Americans: A Mormon Example", which argues that homosexuality was common among early Mormons and was not seen as a serious sin or transgression. He also authored the 1987 book, "Early Mormonism and the Magic World View", which argues that early Mormon leaders were greatly influenced by folk magic and superstitious beliefs including stone looking, charms, and divining rods.