Mass incarceration is a lived, sensory experience. The most eye-popping statistics alone cannot relate the enormity of its psychological and societal impacts. This concise, illustrated primer is a collaboration between one of mass incarceration's sharpest opponents, James Kilgore, and information artist Vic Liu. It brings to life the histories and means of daily survival of the marginalized people ensnared in this racist, ableist system of class-based oppression. The book elegantly weaves together the most insightful activist scholarship with vivid testimonials by incarcerated people as they fight back against oppression and imagine freedom. Those targeted for incarceration do not simply submit to a monochromatic existence behind bars. The Warehouse showcases the abolition futures being crafted from the inside as people resist through direct action and artistic expression. This book is designed to inform, enrage, and ultimately inspire the same radical hope propelling incarcerated underminers of the carceral state.