This document discusses customer insight and how to research it. It defines customer insight as understanding a customer's beliefs, values, habits, desires, motives, emotions or needs in order to gain a competitive advantage. Customer insight leads to customer loyalty, future innovation, strong brands, and differentiation. It recommends researching customer insight through interviews, observations, diaries, experience sampling methods, and workshops. Interviews explore issues and create initial contact, while observations understand context and uncover behaviors people don't think about. Diaries are based on self-recording, and experience sampling captures real-time experiences. Workshops collect multiple viewpoints and surface consensus and conflicts and latent knowledge. The document recommends the book "A Designer's Research Manual" for further