Mark Tobey (born December 11, 1890, Centerville, Wisconsin, U.S.—died April 24, 1976, Basel, Switzerland) was an American painter whose individual experiments with abstract, calligraphic work influenced subsequent art trends, especially Abstract Expressionism.
Tobey studied at the School of the Art Institute of Chicago and worked for a time as a fashion illustrator and portraitist in New York City. He converted to the Bahāʾī faith in 1918 and from that point on explored non-Western spirituality.
Tobey’s mature painting style evolved after a visit to East Asia in 1934, during which he spent one month in a Zen monastery in Kyōto and studied Chinese calligraphy in Shanghai. The influence of calligraphy first became apparent in the tangled brushwork of his cityscapes of the 1930s, and Tobey went on to develop a unique style consisting of a web or network of calligraphic marks painted in white against a gray or coloured ground. This “white writing” soon displaced all realistic representation in his work. Tobey’s works are small in size by the standards of 20th- and 21st-century American art, and the cool refinement of their primarily watercolour, tempera, or pastel surfaces further distinguishes them from those of his contemporaries. His use of an all-over, abstract, linear network in his art anticipated the works of Jackson Pollock.