"Back in the day" it was not unusual to find sensational little paperback books at the news stand costing a dime or a quarter - some called them 'dime novels' - many with mystery or crime themes and, shall we say, eye-catching cover art.
Demand for these books were part of the social fabric of the time (though whether publishers were leading it or feeding it is up for speculation). Publishers and movie producers created an bawdy subset of this genre were propaganda against cannabis.
They preyed upon people's fears of cannabis, and clung closely to the 6 CANNABIS CANARDS, while keeping important research on cannabis' medicinal properties from being conducted for decades.
Here's a gallery of some of the titles that kept people distracted and afrai: