Graduated from Portland State University in 1982, Lambert Dyer moved to Chicago where he earned a master's degree in family therapy and school counseling. During the years of practice in schools and hospitals she works with children, adolescents and families in the field of mental health and during her practice in these structures she meets Deanna Parrish, counselor and therapist specializing in eating disorders and learning disorders. After 4 years of training their friendship grows exponentially to their professional skills, and in 1990 they decide to work as a private practice flanked by a team of colleagues and assistants with various medical specializations. Thus begins a long period in which Lambert and Deanna offer psychological counseling to treat anxiety, phobias, panic attacks, depression, eating and learning disorders, obsessions, complexes and addictions ... And in 2020, with twenty years of experience on their shoulders, they decide to write a series of self-help books to allow anyone to recognize and deepen those problems that not everyone is willing to bring into a therapist's office ... This is how Cognitive-behavioral therapy Empath Improve Your Social Skills Mental Models were born, then published in a single bundle entitled Self Discipline Mastery, the first test bench by Dyer and Parrish to which new ones will be added shortly publications.