A new book published by Flammarion offers a rare glimpse into Christian Dior’s Paris atelier during 1956–57, through the eyes of German designer Yorn Michaelsen, who began his career at the legendary fashion house at the age of 21.

A Season at Dior revisits 30 Montaigne at a pivotal moment in its history, the year of Christian Dior’s death. Born Jürgen Michaelsen in Bremen in 1935, the young designer was recruited by Dior himself in 1956, joining the Studio where the house’s revolutionary New Look had first emerged in February 1947. It was there that he began his education in French haute couture, contributing to the Libre collection.
Dior gave the young recruit the name ‘Yorn’, which would subsequently become his professional signature. The experience marked the beginning of a career that would see Michaelsen establish his own fashion house in Paris and become a pioneer in bringing French ready-to-wear to German department stores.

Through personal recollections, the book paints a portrait of Dior as discreet, kind, generous and visionary, while capturing the creative energy of the house during a defining period. Michaelsen brings to life the people behind the collections, from the premières and petites mains to the models, sales assistants and senior figures who collectively shaped the Dior universe.

The publication is illustrated with a photographic essay by Loomis Dean, originally shot for LIFE magazine, alongside images by Richard Avedon, Henry Clarke, Willy Maywald, Mark Shaw and Henri Cartier-Bresson. Previously unpublished material from the Dior archives further illuminates the process of creating a haute couture collection, from the initial development of designs in the Studio to their realisation in the Ateliers.

Following his time at Dior, Michaelsen worked as a pattern-maker for Madame Grès and Pierre Billet before presenting his first couture collection for Hermine Paris in 1961. In 1962, he opened his own house at 144 Avenue des Champs-Élysées. He later pioneered exclusive ready-to-wear agreements with German retailer Karstadt, before transitioning to design consultancy in 1968 and working with luxury brands across Europe.
More than a retrospective of fashion history, A Season at Dior explores the transmission of creative knowledge between generations. Its emphasis on freedom, curiosity and the courage to pursue an independent vision also resonates with the direction Jonathan Anderson is now bringing to Dior, connecting the house’s heritage with a renewed creative perspective.