A concise edition of the original book Critical Thinking Therapy: For Happiness and Self-Actualization by Dr. Linda Elder. Like the larger book, it introduces a substantive theory of critical thinking to the field of mental health therapy and details a broad, integrated set of critical thinking tools for use in self-therapy and professional therapy. It provides activities and diagrams that assist and guide the individual seeking a more enlightened, more fulfilled, less fearful, and less self-defeating orientation to the world. It is also for those who are aware that they are not now reaching their potential and who seek a self-actualizing frame of mind. This book is recommended for use by clients, in tandem with their therapists, as well as for clients and individuals working alone.