More and more corporations, organizations and governments promote equity, diversity and inclusion as their core values. The propelling force behind that is not only because of justice - to eliminate the systemic discrimination that identifiable groups, such as women, seniors and visible minorities, have experienced by increasing their representation in employment, education and other opportunities. An equitable, diverse, and inclusive environment can also promote those organizations' images and reputations and enable their employees, contractors, and business partners to reach their full potential and contribute their best by feeling respected, treated fairly, and working in comfortable environments. This book analyzes how diversity and inclusion should be done to achieve equity as the final goal. It suggests organizations and government use a quantity approach in diversity.