The Psychological genre of books typically explores the inner workings of the human mind and emotions, often delving into complex and sometimes disturbing psychological states. These books may focus on mental illness, trauma, relationships, or personal growth, and often challenge readers to confront their own beliefs and perceptions. Psychological books may be suspenseful, thought-provoking, and emotionally intense, offering readers a deep and often unsettling glimpse into the human psyche.

The "Revenge" category of books typically involves stories where a character seeks vengeance against another character or group of characters who have wronged them in some way. These books often explore themes of justice, morality, and the consequences of seeking revenge. The stories may be dark and gritty, with characters who are willing to go to extreme lengths to achieve their goals. Overall, the "Revenge" category offers readers a thrilling and often emotionally charged reading experience.

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