Oteng Ofori-Atta works as a guard at MoMA.

30 Seconds is an ongoing series created by Thilo Hoffmann.

Hoffmann worked with MoMA members and staff to create short films based on their ideas and experiences in and around the museum.

For more information about the 30 Seconds series, please visit www.thilohoffmann.com.

© 2009 The Museum of Modern Art, New York