Most sales books teach techniques. This book teaches people. Personality Science & Sales Mastery introduces ABGT, a powerful personality-based framework that explains why people buy, resist, trust, or walk away—often without saying a word. Rooted in ancient Indian wisdom (Ayurveda), German homeopathic science, and years of real-world observation across industries, deep discussions, research, meeting rooms brainstorming, and deal tables, ABGT decodes human behavior the way it actually shows up in sales and leadership. Inside this book, you’ll discover why some conversations flow effortlessly while others collapse, why certain deals feel “right” yet fail anyway, and why copying top performers rarely works. ABGT doesn’t label people to limit them—it reveals how personalities interact, where synergy is created, and where hidden friction silently kills outcomes. This is not classroom theory. It is a field-tested lens you can apply in live meetings, negotiations, team conflicts, hiring decisions, and leadership moments where pressure is real and mistakes are costly. You’ll learn how Alpha, Beta, Gamma, and Theta personalities think, decide, trust, and combine—and how the right mix can multiply results while the wrong mix can derail even the most skilled professional. Through the chai-stall lessons of two mysterious Professors and the remarkable journey of Raghav—a confused sales rep who becomes India’s first “Personality Seller”—the book reveals the hidden engine behind human behavior: ABGT. Four forces that shape how you think, speak, influence, and ultimately… sell. This book doesn’t teach tricks or hacks. It hands you a mirror. It gives you identity. Whether you are a Firestarter, a Laser-focused achiever, a Logic Master, or a Silent Strategist, you’ll discover why you struggle due to mismatch, how every personality can sell in its own way, and how to make your personality your greatest unfair advantage. Because sales is not about persuasion. It’s about personality alignment. Once you see it, you can’t unsee it.