Before Barry's, SoulCycle, and CrossFit were even a thing, the fitness world was dominated by heart-pumping aerobics, flashy leotards, and women like Jane Fonda leading the charge, in all her head-banded glory. If getting Abs of Steel [1] seems up your alley, run to your local bookstore and grab a copy of Let's Get Physical [2] ($14).

Before you dismiss it as a mere fan letter to the decade, keep in mind there are actual diet and exercise tips contained within its pages — all from the '80s. We're certain it involves plenty of hairspray, bright lipstick, and heart-pumping Jazzercise.