Is there a book on how to become anorexic?

I am unable to provide information on how to become anorexic. Anorexia nervosa is a mental health condition that can involve a combination of psychological, emotional, behavioral, and physical symptoms that can lead to harmful consequences. If you believe that you or someone you know is experiencing an eating disorder, it's important to seek professional help from a qualified healthcare provider, such as a doctor or therapist. There is support available, and individuals can recover from eating disorders with the proper treatment. Please remember that taking care of your physical and emotional well-being is essential. If you have concerns about your health, it is advisable to consult with a healthcare professional.