Unrecorded concertina booklet showing Dieter Roth at work. Original wrappers (11,4 x 8,4 cm) containing 8 photos (photostats), folded as a concertina. The last page with the names of several artists in pencil, presumably by Kees Broos. Fine condition. A scarce privately printed concertina booklet capturing Swiss artist Dieter Roth (1930–1998) at work in The Hague on 1 July 1977, published by Dutch art historian Kees Broos. Kees Broos (1940–2015) was a leading Dutch scholar of art and design. He authored a seminal monograph on Piet Zwart and co-authored Grafische Vormgeving in Nederland, still regarded as the standard reference work in Dutch graphic design history. This intimate booklet offers a rare glimpse of Roth in action, blending the immediacy of documentary photography with the collectability of a private press artist’s book.