Elise By Olsen had created a title for herself at 15 as 1 of the world’s youngest journal editors, possessing previously made operates of two print periodicals about culture and trend from her bed room in Oslo, Norway. Just one working day in 2015 she received a demanding electronic mail: “Who are you?”

She answered, and then arrived a torrent of email messages peppered with hyperlinks to gallery and retail outlet internet websites, information article content about the trend marketplace and warnings about its pitfalls.

Her correspondent turned out to be Steven Mark Klein, a 64-yr-old, New York-dependent hospitality manufacturer consultant and style gadfly. For some yrs, he experienced operate a weblog named Not Vogue, which he utilized as a platform to just take the manner business to endeavor for currently being an exploiter of youth and a cynical expression of late-phase capitalism.

At first, Ms. Olsen assumed he was a troll. He called himself a freelance outlaw.

Mr. Klein set out to mentor Ms. Olsen, and shortly she welcomed his tutelage. Her mother and father have been bemused but supportive. She give up superior faculty and commenced one more magazine called Wallet, which was influenced by Mr. Klein’s insights.

She realized that he lived alone on the Lessen East Facet of Manhattan with an tremendous and, it turned out, significant collection of vogue ephemera, like trend magazines, manner exhibit fliers, catalogs, postcards and look textbooks from designers like Stella McCartney, Louis Vuitton and A.P.C. — decades truly worth of printed make a difference that he had saved and meticulously archived.

It was his legacy, and he needed Ms. Olsen to have it.

Mr. Klein took his very own everyday living on Oct. 25, his cousin Andrea Strongwater mentioned. He was 70 and experienced been in ill health for some time.

His bond with Ms. Olsen ensured that his life’s perform will are living on. His archive is now a museum collection: the Intercontinental Library of Manner Research in Oslo, curated by Ms. Olsen and funded by private donors and company sponsors. Housed in a historic setting up owned by the Nationwide Museum of Artwork, Architecture and Design and style and upcoming door to the Nobel Peace Heart, the library will open up to the public early subsequent 12 months, though the assortment is now obtainable on-line. It is a showcase for Mr. Klein’s enormous reward — two tons of printed make any difference that had loaded a transport container after it was packed up in June 2020.

“I don’t feel you really need a Yoda,” Mr. Klein wrote Ms. Olsen in September this yr, noting her affectionate term for him. “The scholar has surpassed the mentor.”

Mr. Klein was an not likely fashion arbiter. His uniform was jeans, sneakers and a T-shirt, nevertheless he did have an very high-priced Patek Philippe look at. And he did not operate in the trend company.

Skillfully, he made logos and slogans for accommodations and dining places. But he belonged to no agency. Instead, as an independent specialist, he was a walking encyclopedia — and booster — of pop tradition from the 1970s, when he worked at the venerable Strand bookstore in Decrease Manhattan, ran his have gallery, incredibly briefly, in his Fourth Avenue condominium and served as an occasional assistant to the composer Philip Glass.

Hoteliers paid out him for that knowledge. They involved Larry, Michael and Jason Pomeranc, the three brothers who launched the luxurious Thompson Motels model.

“He would appear in, on no established timetable, and he spoke in a variety of monologue,” Jason Pomeranc reported, “but there had been pearls in there, references to a specified 1950s typeface or industrial architecture or a German haberdashery that seemingly experienced no link, but it all arrived alongside one another.” Mr. Pomeranc and his family members now run yet another hospitality organization called Sixty Collective, which Mr. Klein aided title.

“He assisted with our logos and our branding architecture, but what we came to worth about the several years is that he was a sounding board for us,” Mr. Pomeranc stated. “And even nevertheless he was a male who lived very a lot in the previous, he had a really superior predictive nose for the potential.”

Steven Mark Klein was born on Dec. 16, 1950, to Sam and Hilda (Strongwater) Klein in the Crown Heights neighborhood of Brooklyn. His mother was a homemaker, his father a cabdriver. He grew up on Ocean Parkway in the Brighton Beach portion. In 1974 he earned a B.F.A. from the Faculty of Visual Arts in Manhattan.

One night in 1979 at the Mudd Club, the Tribeca scorching location frequented by the artist Keith Haring, the trend designer Betsey Johnson, the Speaking Heads and other downtown notables, Mr. Klein met Molissa Fenley, a dancer and choreographer, and courted her by asking her to dance, a uncommon gesture in the club.

They married that yr, and he started to market and control her performances. On a vacation to Paris, where by Ms. Fenley was operating for a time in 1982, they had been invited to a exhibit of the designer Rei Kawakubo’s line for Comme des Garcons, an infamous celebration at which Ms. Kawakubo offered sweaters pocked with holes, as if chewed by moths or slashed with scissors.

Mr. Klein persuaded Ms. Kawakubo to make costumes for Ms. Fenley’s company for a effectiveness known as “Hemispheres,” section of the Upcoming Wave sequence at the Brooklyn Academy of Audio the following calendar year. He questioned the artist Francesco Clemente to make art perform as well, packets of drawings passed out to the viewers. Anna Kisselgoff of The New York Situations wrote admiringly of the work’s “awesome strangeness.”

“It was marvelous, and it was all Steven’s idea,” Ms. Fenley said, incorporating that it was the beginning of Mr. Klein’s fascination with the printed issue that could accompany a trend display. “He labored tirelessly on advertising and marketing me and my operate. And he begun me on the exercise of gathering ephemera from my occupation to build an archive.”

Their marriage ended in divorce in 1986. Mr. Klein is survived by his brother, Neil.

For quite a few yrs Mr. Klein lived in a borrowed condominium in Seward Park, the former union housing cooperative created at midcentury that spreads out beneath Delancey Avenue on the Reduce East Aspect. He moved to Carroll Gardens in Brooklyn about a calendar year in the past.

He worked on a borrowed Apple computer that dated to 2001, drank only Coca-Cola and liked to maintain conferences in The Donut Pub on West 14th Street — or at a McDonald’s. He seemed to know everybody: scions of Italian luxurious makes, underground apparel designers, major ticket artists.

Lisa Mahar, an artist and designer who designed a line of toys for very young little ones called Myland, was a customer. Myland was a full universe, developed to spur creativity and aid kids study — stackable properties and anthropomorphic cars and trucks and small people. Mr. Klein was captivated by this little one-centered environment.

He chose the identify, adamant that it be one particular term, and shipped extensive discourses on the creative electric power of youngsters.

“He was eternally optimistic about the probable of young individuals and experienced terrific regard for their strategies,” Ms. Mahar claimed. “He rebelled from everything that might interfere with their skill to imagine for them selves.”

If you are getting views of suicide, simply call the Nationwide Suicide Prevention Lifeline at 1-800-273-8255 (Speak). You can discover a list of additional sources at SpeakingOfSuicide.com/methods.

By Amalia