The covers of some magazines stay the same for a hundred years, while others change drastically, even when they seem the same from month-to-month. Vogue went from art to fashion models to celebrities. Cosmopolitan went from literature to sex. Karen X. Cheng and Jerry Gabra put together a gallery and analysis of the cover art of some familiar and long-lived magazines. Looking through them, you have to wonder why National Geographic only started using photos on the covers in the 1960s, and why GQ took until the ‘90s to figure out they should put a woman on their covers. Meanwhile, there’s one magazine using the same style covers now as it did 100 years ago. See them all at Medium.