About Us

Design + Know-How is a multidisciplinary creative agency based in Paris, France. We are a full-service studio that dives into all sorts of projects from developing strategy to design and production across many platforms (print, web, product, networked objects, what have you.) We specialize in creative direction, brand identity, books, texture and color palettes, illustration, and more.

No matter the size or scope of the assignment, we are committed to dreaming up interesting and arresting solutions for tech giants as well as boutique brands. We bring intelligence and thoughtfulness to every project, and pride ourselves on building enduring relationships with our clients.

Design + Know-How has won awards from the AIGA, the American Center for Design and the Type Directors Club, and has been featured online and in print publications such as the New York Times, The Type Directors Club Annual, Jalouse and Elle magazines.




Martine Trélaün is a designer and creative director from San Francisco, California. She has worked for tech + biotech giants, publishing stalwarts, food startups, athleisure and fashion brands, and was for a time the assistant managing editor of a Bay Area snowboarding magazine (Ride a shred sled!) In addition to design, Martine is crazy about dance, printmaking, toast, vintage scooters and yoga.


Born in Carmel, California, Terence Arjo is a designer, researcher and serial entrepreneur whose work investigates the emotional attachment we have to objects, and how technology enhances or derails human behavior. With a BS in Industrial Design and a Masters from ITP/NYU, he is as comfortable designing medical instruments as he is building hardware and software. His interests include cycling, rugby, surfing and babying his La Pavoni Europiccola.

Terence and Martine were the 2008 recipients of a grant from the Foundation for Living Arts in America for their project, Vanishing Soundscapes.



BD Biosciences

Chronicle Books

Do Your Thing


Expansion, Freedom & Voice


HarperCollins Publishers


Les Rois Mages

Lululemon France

Misha & Puff


Sony Biotechnology

Yoga Concept Paris