Meanwhile, women have long been conditioned to do exactly the opposite. From Emily Dickinson (who once wrote to a male friend that “I have a little shape…. It would not crowd your desk, nor make much racket as the mouse that dens your galleries”) to the beauty culture that has nearly always deemed the thinnest, smallest, and, frequently, palest, women to be its most desirable and valuable, the message is that the measure of a lady can be taken by how little of the world she takes up.

So can we read the body’s journey through the world as an unequivocally gendered one? It would be easy enough to shrug and say yes, but for German artist Marianne Wex, that wasn’t quite sufficient. In the mid-1970s, Wex, a painter, became fascinated with body language as text, and began amassing a collection of candid photographs—most of them taken on the streets of her hometown of Hamburg, unbeknownst to their subjects—and started building a taxonomy of the differences between male and female body language. To these, she added images culled and re-shot from a variety of secondary sources, including advertisements, catalogs, art reproductions, television and film stills, pornography, and found photos; later, she photographed volunteers in poses that she considered typical of the sexes.

The first result was a project deliberate in its blurring of the line between research and art. Wex’s initial collages—rows of numerous “male” and “female” images on large white boards and headed with mundanely descriptive categorizations (“men sitting,” “women standing”)—were stark and clinical. She cropped each image so that the figures were not contextualized in space, but only readable in contrast to the images around it.

The second result was her book called Let’s Take Back Our Space: “Female” and “Male” Body Language as a Result of Patriarchal Structures. Its landscape format reproduced Wex’s large panels of grouped images and included brief blocks of text that fused art history, sociology, and personal experience into a cohesive and powerful whole. Though the book’s layout echoed the original panels and grouped images with similar workaday language (e.g. “Standing persons, arm and hand positions”), the book wasn’t simply a catalogue of gendered body language. Mike Sperlinger, who curated a 2009 Wex exhibit at London’s Focal Point Gallery, calls Let’s Take Back Our Space “a photographic typology fashioned into a feminist broadside; an encyclopedia of gesture; an anthropological portrait of Hamburg in the 1970s; a monomaniacal tract on art history; a neglected classic of appropriation aesthetics; an autobiography; an exorcism.” Indeed, for Wex herself the polemic weight of the project proved to be career-changing; after its publication, she stopped making art and chose instead to concentrate on “creating new forms with other women,” which in her case took the form of working as a healer.

A resurgence of interest in her work began, recalls Wex, when a friend of Sperlinger’s happened on a copy ofLet’s Take Back Our Space in a used bookstore and sent it to him. The intrigued critic tracked Wex down (“I suppose he used the Internet,” she shrugs), and asked if she’d be interested in showing the original panels. But to pose the rediscovery of Wex’s work—Portland, Oregon’s Yale Union Contemporary Arts hosts the United States’s first exhibition of it through December 15—as a reclamation of second-wave aesthetic activism seems like a betrayal of the artist’s own wishes, given that Wex abandoned even her own analysis as “based on artistic and scientific methods that have been totally derived from men’s interests.”

And yet it seems important to acknowledge how Wex’s work dovetailed, and continues to resonate, with a society that remains mired in assumptions about what actions, behaviors, and presentations “fit” notions of gender, and with people whose awareness of their own gendered beings is in part determined by the spaces in which they live and move. Even the quotation marks with which Wex set off “Male” and “Female” in her book’s subtitle have an enhanced significance today. Though she may have originally intended the quotes as an escape hatch for her own essentialism—the figures she photographed were always instantly readable as “men” and “women” even before their body language was parsed—they now denote the evolution that followed in the post-’70s decades, in which gender’s fluidity has become both more understood and less remarkable.

At Yale Union’s opening night for “Marianne Wex: An Exhibition,” I ask Wex, who has traveled from her home in Höhr-Grenzhausen for the event, how it feels to have her work rediscovered. She thinks, then chuckles. “Why not? I’m still rediscovering myself.”