Wes Wilson is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 artist

Artist

An artist is a person engaged in one or more of any of a broad spectrum of activities related to creating art, practicing the arts and/or demonstrating an art. The common usage in both everyday speech and academic discourse is a practitioner in the visual arts only...

 and one of the leading designers of psychedelic posters

Psychedelic art

Psychedelic art is any kind of visual artwork inspired by psychedelic experiences induced by drugs such as LSD, mescaline, and psilocybin. The word "psychedelic" "mind manifesting". By that definition all artistic efforts to depict the inner world of the psyche may be considered "psychedelic"...

. Most well known for designing posters for Bill Graham

Bill Graham (promoter)

Bill Graham was an American impresario and rock concert promoter from the 1960s until his death.-Early life:...

 of the The Fillmore

The Fillmore

The Fillmore Auditorium is a historic music venue in San Francisco, California, made famous by Bill Graham. Named for its original location at the intersection of Fillmore Street and Geary Boulevard, it lies on the boundary of the Western Addition and the Pacific Heights neighborhoods.In 1968,...

 in San Francisco, he invented a style that is now synonymous with the peace movement

Peace movement

A peace movement is a social movement that seeks to achieve ideals such as the ending of a particular war , minimize inter-human violence in a particular place or type of situation, often linked to the goal of achieving world peace...

, psychedelic era

Psychedelic era

The Psychedelic era refers to the time of social, musical and artistic change influenced by psychedelic drugs, generally described as occurring during early 1960s to the mid 1970s. Some consider the psychedelic era to be more tightly limited to the years of 1965-1969...

 and the 1960s. In particular, he is known for inventing and popularizing a "psychedelic" font around 1966 that made the letters look like they were moving or melting. It was very common by the 1970s.