In case you're wondering, human services is an actual function of the U.S. government. The department is called Health and Human Services, and there's no healthier human service than sex. You can guess the plot of 1967's Lust Candidate without too much trouble. An honest politician squares off for a governorship against a slick media star, while all sorts of craziness goes on behind the scenes with wives, mistresses, and a hot young stepdaughter.

We love the art. It's often attributed to John Duillo, but Doug at the (now mostly defunct) blog whatgetsmehot suspected Elaine Duillo was behind this one, and back in 2010 sent an image of the cover to her. The answer she gave was revealing. Apparently, she painted the blonde on the right because the people at Chevron Books didn't didn't like the figure the first artist had produced. “They asked me to paint the blonde again. Then they stripped it in and paid me well to do this for them.”

To our eyes it looks like one artist wielded the brush here, but we presume Elaine Duillo knows her own work. We also presume she knows whether she replaced her husband's work, so it looks like those John Duillo attributions could be wrong. We'll put this in the two-thirds-unknown bin for now. That's a new bin, but there you go.

How do you make sleaze better? Pass it off as educational. During the 1960s, a time when sexual research was experiencing a bit of a—if you’ll excuse the expression—growth spurt, a subset of the sleaze market arose in which fictional clinical studies were passed off as serious scholarship. Barbara Hoffman was one of the go-to authors for this type of fiction, and wrote analyses such as The Baby Pros (a study of teenaged prostitution), The Adulteress (a report on unfaithful wives), Teenaged Seductress (a report on promiscuity among teenaged girls), Woman Loves Boy (a study of older women’s relationships with teenaged boys) and The Youth Lovers, above (which purported to document relationships between older men and teenaged girls). While some minimal research may have gone into the text, people bought these books for the steamy details included in the phony case studies. Doctors were quoted to provide a gloss of legitimacy, but they too may have been fictional, and in fact, Barbara Hoffman herself never existed, but was a pen name for veteran sleaze author Russell Trainer, the man who gave the world The Lolita Complex. That’s a story all its own, which we may share later.