O’Brien is a book artist, using the book as medium for both artistic expression and everyday beauty. Her current work is personal, with an interest in exploring things that have remained unspoken. Artist books offer abundant opportunities to experiment with revealing or hiding information. Layers, translucency, boxes, hidden compartments, storytelling, images, and staged revelation are her explorations. She challenges herself – and by extension anyone who interacts with her work – to express what she most deeply wants to say, while respecting the need for privacy when it matters.