Tantric yantras are precise geometric forms that have been used for centuries as tools for self-realization and the attainment of mystical powers. Tantric practitioner and scholar Harish Johari (1934-1999) traveled throughout India in search of ancient examples of primordial yantras, and in this book has re-created their exact colors and proportions along with step-by-step instructions for their accurate construction, coloring, and use.