Some of the material in this booklet was gathered to use in the orientations for new members of the Lesbian Sex Mafia (LSIM). LS/M was founded in 1981 as a support and information group for lesbian and bisexual women interested in so-called "politically incorrect" sex-fantasy and role playing, bondage, discipline, SIM, fetishes, costumes, alternate gender identities, and so forth.
Patrick Califia, who formerly wrote under the names Pat Califia and Patrick Califia-Rice, is a writer of nonfiction (on men, gender, transgender identity, and sexuality) and fiction (erotica, poetry, and short stories).
This is the best BDSM manual I've read (and I've read many). The STI part is outdated (as expected in a 1988 manual) but otherwise it's just great. Like many queer manuals, it puts the emphasis on communication, but still gives practical advices (which a lot of these omit).