Book Yourself Solid: The Fastest, Easiest, and Most Reliable System for Getting More Clients Than You Can Handle Even if You Hate Marketing and SellingMichael Port4.3
Beyond Booked Solid: Your Business, Your Life, Your Way – It's All Inside: Your Business, Your Life, Your Way - It's All InsideMichael Port4
The Contrarian Effect: Why It Pays (Big) to Take Typical Sales Advice and Do the OppositeElizabeth Marshall