Crasset spent her childhood in a small village in northern France, on a farm where work and life were intimately linked.

Like one of her emblematic objects, the hospitality column "When Jim Goes Up to Paris", she sets up her own methodology in which she questions the obviousness of the codes that govern our daily life to better free from it and experiment. It thus develops new typologies articulated around principles such as modularity, appropriation, flexibility, network. Her work, which imposed itself from the 90s onwards as the refusal of pure form, is conceived as research in motion, made up of hypotheses more than principles.

She collaborates with eclectic worlds, from crafts to electronic music, from the textile industry to fair trade. Her creations have thus taken her to areas that she had never imagined, from scenography to furniture, from graphics to interior architecture.

In 2011 and 2016, she was a guest of honor at the Festival international du livre d'art et du film. She was one of the artists selected by Brigitte Macron in 2017 for the redevelopment and decoration of the Elysée Palace.