The Ultra-Lettrist movement was an art form developed by Jean-Louis Brau, Gil J Wolman, and Francois Dufrêne, in the 1950's, when they split from Isidore Isou

Isidore Isou

Isidore Isou , born Ioan-Isidor Goldstein, was a Romanian-born French poet, film critic and visual artist...

's Lettrism

Lettrism

Lettrism is a French avant-garde movement, established in Paris in the mid-1940s by Romanian immigrant Isidore Isou. In a body of work totaling hundreds of volumes, Isou and the Lettrists have applied their theories to all areas of art and culture, most notably in poetry, film, painting and...

.

They issued a periodical called grammeS|grammeS: Review of the Ultra-Lettriste Group, which ran for seven issues between 1957 and 1961. They used their journal to publish hypergraphics  which included exchanges and discussions with the Lettrists' Poésie Nouvelle and the Situationist International.

Some Ultra-Lettrists went on to form the Nouveau réalisme school while others joined the Situationist International.