
Karel Martens
Unbound
Exhibition — July 11 until Oct 26, 2025
The Stedelijk presents the first major retrospective of Karel Martens (1939), one of the Netherlands’ most influential post-war graphic designers, renowned for his inventiveness, and for his playful and experimental approach. Karel Martens trained and inspired younger generations of designers in the Netherlands and internationally. The exhibition is a journey of discovery through the oeuvre that Martens created over 65 years—from his adventurous lettering on buildings, to books, typography, postage stamps, telephone cards, and wallpaper.
Internationally, Dutch graphic design has traditionally enjoyed a strong reputation. Building on the modernist tradition of predecessors such as Piet Zwart, H.W. Werkman and Willem Sandberg, Wim Crouwel, Jan van Toorn and Karel Martens were the Big Three in the world of graphic design from the 1960s onwards. Where Wim Crouwel was known for his functional grid, that served to highlight content, and Jan van Toorn brought his activist and personal side to the fore, Karel Martens—as an experimental, curious and free maker—also revolutionized the way we look at graphic design, book design, and typography.
For Karel Martens, it’s all about thinking, looking, and experimenting. “I love playing about, trying things out, not being quite sure, starting over.” Martens plays with color systems, numbers, word schemes, and algorithms, where one element arises from another. He frequently layers bright areas of color over one another and uses both digital and analog techniques. Marten’s ‘free’ work was always the basis for designs he created for clients like the PTT (the Dutch national postal service) and publishers such as Van Loghum Slaterus, Manteau, and SUN (Socialistische Uitgeverij Nijmegen).

Martens is also resourceful, able to do a lot with very little; his inventiveness and economy are apparent in his work. Keen to avoid waste, he repurposes newsprint, and the Stedelijk’s old archive cards. He doesn’t hesitate to stray from design ‘rules’: a text can start on the cover or be found in the margins. The architecture magazine OASE exemplifies his most ambitious experiments; no two issues are the same. Martens began designing OASE in collaboration with students from the Werkplaats Typografie, which he co-founded; today, he designs it with his daughter, Aagje Martens.
Since Karel Martens began collaborating with his children Klaartje and Diederik in 2019 under the name Martens & Martens, the scope of his work has broadened to include textiles and collaborations, such as with Suite702, which produces towels based on Martens’ color system for the beach cabins in Le Havre. Martens’ designs have also been incorporated into textile designs for Liberty London, Maharam, Hermès, DUM, Pop Trading Company, and Pentagram, among others.
Comprising over 300 works, the exhibition is a journey of discovery through Karel Marten’s rich body of work. It features a comprehensive survey of his adventurous building lettering, such as that for the Nederlands Danstheater in The Hague, as well as every issue of OASE, and books, typography, postage stamps, telephone cards, and wallpaper he designed. Another highlight is a replica of one of his beach cabins, part of Couleurs sur la plage in Le Havre (2017), enlivened with a color system Martens designed using algorithms based on the city’s founding decree of 1517. The Icon Viewer he developed converts live images into Martens’ icon pixels. In this gallery, you can also see the road surface design he created in 2024 for Amsterdam to make the 30-km speed limit visible and tactile.
The exhibition layout also offers an impression of Martens’ studio, with a wall of collected objects and pictures revealing his inspirations, and display units containing his many designs. For the first time, countless sketches from Marten’s archive offer visitors a glimpse of his research and design process. At the reading table designed by Mertens, you can leaf through his designs to your heart’s content and, in the film room, see the designer at work and listen to designers he inspired.
Karel Martens was an influential teacher who continued to teach until five years ago. ‘Learning by doing’ was always his motto, and he encouraged students to do their own research and find out for themselves what works and what doesn’t. Martens was a professor at the Jan van Eijck Academie in Maastricht, a guest professor at Yale University in the United States for 22 years, and taught for many years at ArtEz in Arnhem, where he co-founded the Werkplaats Typografie, which produced, and continues to produce, cohorts of talented designers.
Prizes
Karel Martens has garnered countless prizes for his pioneering work, including the BNO Piet Zwart Prize (2023), the H.N. Werkman Prize (1993), the Dr. A.H. Heineken Prize for the Arts (1996) and the Gerrit Noordzij Prize (2012). His oeuvre publication Printed Matter (which he designed himself after winning the Heineken Prize) was awarded a gold medal at the 1998 Leipzig Book Fair as the best designed book of that year.
Collection en exhibitions
Karel Martens’ work received international attention in media such as the New York Times and Emigre, the distinguished American magazine dedicated to visual communication and design criticism. Museums such as SFMOMA (San Francisco) and The Art Institute of Chicago included his works in their collections. Solo exhibitions abroad took place at P! New York City (2016), Kunstverein München (2017), 019 Ghent (2017) and Platform-L in Seoul, South Korea (2018/ 2019) and Ginza Graphic Gallery Tokyo (2013). The Stedelijk showed the work of Karel Martens in shows such as Mooi maar goed - Grafisch ontwerpen in Nederland 1987-1998 (1999), Werkplaats Typografie (2002) and in various editions of De Best Verzorgde Boeken and the Municipal Art Acquisitions.

The exhibition Karel Martens - Unbound is organized by the Stedelijk Museum Amsterdam and curated by Thomas Castro, curator graphic design of the Stedelijk Museum, together with Klaartje Martens.
The exhibition is supported by the Cultuurfonds.
CREDITS
1. Karel Martens, Monoprint, 2015
2. Karel Martens, Couleurs sur la plage in Le Havre, 2017
3. Cover of OASE Magazine
4. Cover of OASE Magazine
5. Cover of OASE Magazine
6. Telephone cards for PTT Telecom, 1994
7. Book cover of Wim Crouwel - mode en module, 1997, published by 010 Rotterdam
8. Couleurs sur la plage by Karel Martens from 2017, translated to towels by Suite702