H.N. Werkman was a Dutch artist, typographer and printer. He was a member of the artists’ group De Ploeg (“The Plough”), for which he printed posters, invitations and catalogues. From 1923 to 1926, he produced his own English-named avant-garde magazine The Next Call, which, like other works of the period, included collage-like experimentation with typefaces, printing blocks and other printers’ materials. He also used stenciling and stamping to achieve unique effects. He would distribute the magazine by exchanging it for works by other avant-garde artists and designers throughout Europe. (source: wikipedia)
His work above consists solely of typographic elements.