Michael Brown. Philando Castile. George Floyd. Breonna Taylor. As the names of those killed by the police became cemented into public memory, the American public took to the streets in unprecedented numbers to mourn, organize, and demand changes to the current system of policing. In response, police departments across the country committed themselves to change, pledging to hire more women and people of color, incorporate diversity training, and instruct officers to verbally de-escalate interactions with the public. These reform efforts tend to rely on a “bad apple” argument, focusing the nature and scope of the problem on the behavior of specific individuals and rarely considering the broader organizational process that determines who is allowed to patrol the public and how they learn to do their jobs. In , Samantha J. Simon provides a firsthand look into how police officers are selected and trained, describing every stage of the process, including recruitment, classroom instruction, and tactical training. Simon spent a year at police academies participating in the training alongside cadets, giving her a visceral, hands-on understanding of how police training operates. Using rich and detailed examples, she reveals that the process does more than test a cadet’s physical or intellectual abilities. Instead, it socializes cadets into a system of state violence. As training progresses, cadets are expected to see themselves as warriors and to view Black and Latino/a members of the public as their enemies. Cadets who cannot or will not uphold this approach end up washing out. In , Simon explains how this training creates a context in which patterns of police violence persist and implores readers to re-envision the future of policing in the United States.