The document discusses principles for presenting price in marketing. It describes an experiment conducted by a sports entertainment company to test when to reveal price on their landing page. Removing or de-emphasizing price early in the customer journey resulted in a 96.6% increase in conversions. The document outlines three key principles: 1) Price does not equal cost, as other psychological factors contribute to perceived cost. 2) Price can be presented either positively (P+) or negatively (P-). 3) Price must be tested to find the optimal price point, as intuitions may be incorrect. Testing different price points in an experiment resulted in the lowest price generating the highest total revenue and return on investment.