After discovering that she had Parkinson's disease, Torrance York focused her camera on the challenge to understand what the diagnosis would mean for her life and family. Through her journey onward and inward, she found her art impacting her life just as the opposite was obviously true. She describes it thus, 'What feels good about these pictures is that the images name the experience somewhat, and that is so satisfying. The photograph moves it out of me and into a form that other people can receive.' As Senf explains, 'With each photograph York is building a visual terminology for this journey she's on, which allows her to, quite literally, live life on her own terms.' In Semaphore, York presents photographs of nature, the human body, medical images, details from daily life, and of light, to speak metaphorically about her experience. Her poetic images bare human vulnerability, while inspiring optimism and connection. Over 10 million people worldwide are living with Parkinson's disease. While this book is relevant to the Parkinson's community, it connects with others whose journeys require growth, patience, and perseverance to move forward.