As the latest class of Columbia students prepares to graduate, the college will be promoting their work during Thursday's all-day Manifest festival. There'll essentially be four festivals running in tandem -- art, music, performance and readings -- all spread out along the South Loop Arts Corridor, with free trolleys running between the five major locations. Among the myriad styles of art on display: photography, puppetry, pop, painting, product design, poetry, papermaking ... and dozens of others. All events are free and open to the public.