The "Police" category of books typically refers to stories that revolve around law enforcement officers and their work in solving crimes and maintaining order in society. These books may feature detectives, police officers, or other law enforcement professionals as main characters, and often involve investigations, interrogations, and other police procedures. The genre may include both fiction and non-fiction works, and can range from gritty crime thrillers to more lighthearted police procedurals. Overall, the "Police" category offers readers a glimpse into the world of law enforcement and the challenges faced by those who work to uphold the law.

Alternate History is a genre of fiction that explores the possibilities of what could have happened if certain historical events had taken a different course. It involves imagining a world where key moments in history have been altered, resulting in a different outcome. This genre often blends elements of science fiction, fantasy, and historical fiction, and can provide thought-provoking insights into the impact of historical events on our present-day world.

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