This document discusses the importance of empathy in building great products. It defines empathy as understanding and being sensitive to another person's feelings and experiences without those feelings being explicitly communicated. It states that empathy is important for building the right product because it allows product builders to understand users and themselves. It recommends conducting user research through methods like analytics, observation and immersion to truly understand users. Empathy helps ensure usability and prevents angry customers, while also creating psychological safety and feedback within teams to build the product right.