Although he launched his namesake firm a mere two years ago, Jake Arnold has already established himself as a major force in the world of interior design. As a cofounder of The Expert, a digital platform that connects high-profile designers with clients via online consultations, he rocked a famously tech-phobic industry tethered to outmoded business models. At the same time, he has built his own design practice into a juggernaut, with a list of celebrity clients that includes John Legend and Chrissy Teigen, Katy Perry and Orlando Bloom, Aaron Paul (AD, March 2020), Rashida Jones, and Whitney Cummings. “My philosophy is to create spaces that are high-impact but livable, timeless, and comfortable,” Arnold says of his approach, which places a premium on subdued tones, artisanal details, and richly textured organic…