Brochura em muito bom estado de conservação, 162 páginas. Drawing on 30 years of clinical research, this book asserts that envy is humankinds primary pathology, the root of all ills. Norberto R. Keppe has created a scientific methodology that can help uncover internal corruption. This methodology is effective both for those seeking psychotherapy and for those who want to improve their quality of life. This book supplies the necessary tools to construct the strength, resourcefulness, and resilience needed to become happier, healthier, and move loving human beings.