Just a week before the opening of their annual Peer Show, the Cleveland Print Room invites you to a demonstration of the lumen printing process. Using organic materials, participants will create their own prints with materials provided or brought from home — feel free to bring your own plants and other organic materials. This all ages event is free for CPR members or $5 for non-members. Demo Days: Lumen Prints takes place from noon to 3 p.m. today. The demo and workshop are led by CPR instructor Nikki Follen. (Usmani)