Poster advertising performances by Timothy Leary (1920-1996) as a "stand-up philosopher" at the Earth Tavern in Portland, Oregon, in 1980. Leary was a psychologist and an advocate for the use of psychedelic drugs. The Earth Tavern was located on NW 21st Avenue in Portland and operated from 1973 to 1982.

Five posters relating to events held in the 1980s and early 1990s at Pioneer Courthouse Square in Portland, Oregon, including one poster for the square's dedication. Pioneer Courthouse Square is an outdoor public space in downtown Portland that was designed by a team led by architect Willard K. Martin (1930-1985); it was dedicated in April 1984.