For almost a year now, City Lights' program director Peter Maravelis has been plotting a festival celebrating Oulipo, the literary movement that uses writing constraints to generate new forms. A famous example is George Perec's 300-page mystery novel A Void, which does not contain the letter "e" and has as a central theme the absence of that letter. Started in 1960 in France, where most of its members still reside, Oulipo has admitted only two American members: Harry Matthews and Daniel Levin Becker, who last year published a history of the movement called Subtle Channels: In Praise of Potential Literature. Levin Becker will be joined by Oulipians Paul Fornel and Hervé Le Tellier for this four-day laboratory, which includes a multimedia presentation and panel discussion on Wednesday, readings from Oulipian and Oulipo-inspired texts on Thursday, a reading from the newly released, but ongoing, collectively authored serial novel based on a 1979 text by Perec, called Winter Journeys, on Friday, and writing workshops in both English and French on Saturday. City Lights has teamed up with the Mechanics Institute Library, the San Francisco Art Institute, and Green Apple Books to make this possible.