The Many Levels of Mars and Venus

John Gray, Ph.D., is the author of 15 best-selling books, including Men Are from Mars, Women Are from Venus, the number one best-selling book of the last decade. In the past ten years, over 30 million Mars and Venus books have been sold in over 40 languages throughout the world. He is arguably the most popular writer on relationship in the world today.

John and Ken explore the integral model and how it can be applied to gender and relationship issues. The four quadrants (I/We/It/Its) include the personal, cultural, and social realities of a situation, and developmental psychology looks at the interior levels of growth in individuals. The four quadrants—All-Quadrant—and developmental psychology—All-Level—come together to form the core of the AQAL or integral model.