Have you ever had the experience of being manipulated by a person to such an extent that you felt something was wrong with your perception? That you finally started to doubt your perceptive faculty, even your mental health? That you began to lose confidence in your senses because you were regularly told that you were perceiving reality incorrectly? You are not alone in this: this common phenomenon is called gaslighting, and it is a subtle yet serious form of psychological violence that can have lasting effects on the victim's self-esteem. "I never said that. You're just imagining it." "It never happened that way." "You're overreacting." "You're crazy. You should get help." In this guidebook, you'll learn not only what exactly gaslighting actually is and how this mechanism works, but also how you can free yourself - and others - from the manipulation trap and ultimately emerge stronger from this crisis.