Renowned artist Ai Weiwei engaged nearly 900,000 visitors in a conversation about human rights with his art installation @Large: Ai Weiwei on Alcatraz. In one participatory piece, Yours Truly, visitors sent 92,829 postcards to prisoners of conscience around the world. This book delves into those postcards` lasting impact. Five former prisoners and their loved ones reflect on the experience of receiving hundreds of postcards while imprisoned. Essays and a statement by Ai Weiwei contextualize this extraordinary project. And photographs taken during the exhibition show visitors and the messages they wrote. The book also includes four pre-addressed, tear-out postcards, inviting readers-whether art lovers or activists-to send hope to individuals still imprisoned for defending human rights.