We take communication for granted these days because there are so many ways to deliver a message. In the late 1950's if you wanted to warn drivers from falling asleep at the wheel....how would you do it? ANswer: The magic of the pamphlet. (Which I assume is the compact version of the full sized "pamph?")
I can't tell if they're hypnotized or nauseous...
Maybe you recognize this fellow from other self-help pamphlets such as, "Larry the lead foot" or "Tailgating's No Party!"
"Listen to the radio!?" In 1957 depending on the hour you might be stuck with "The Crop Report" zzzzzzzZZZZzzzzzZZZZzzzz!!!Just remember...Let's be safe out there.