Growing up in the suburbs of Okayama, Japan, Masamichi Katayama first witnessed the impact of design at his father’s furniture shop, Kotobuki-ya. It was there, nestled within the five stories beneath their home, that the future designer observed locals picking out interiors, often in the form of unassuming bookshelves or tables. “My father was such a hard worker, and he even worked on the shop’s holidays,” remembers Katayama, founder and principal of Wonderwall Inc., a prestigious studio based in Tokyo. “My entire family was very committed to the business, and when the business was going well, we were all happy.”

Today, at age 52, Katayama is his family’s wildest dream. As an internationally acclaimed interior designer, he’s transformed spaces for clients like Uniqlo, Thom Browne, and Pierre Hermé. He’s also created lighting and furniture for Cassina and Cibone. In the streetwear world, his name comes up in reference to projects with NIGO®, Kaws, Colette, and AMBUSH®. Based in Tokyo’s upscale Aoyama neighborhood, the Wonderwall operation neighbors the glossy stores of fashion clients for which he remains in high demand. 

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