The physical affects of buildings, classrooms, signs and symbols on visitors and members of the campus community will be the topic of a forum at the University of Colorado at Boulder on April 20 from 5 p.m. to 7 p.m. in conference rooms 3 and 4 at the Recreation Center. Professor James Banning of CSU, who studies the relationships among people and the university environment, will give a slide presentation on the impact that these spaces, including graffiti, art, posters and access, may have on diverse groups and the spirit of multiculturalism.