This document discusses microcopy, which are short, contextual words and phrases that clarify meaning and alleviate concerns. Microcopy can delight customers and create an emotional connection. The document provides examples of effective microcopy from TurboTax that helped build a relationship, sounded human, and was reciprocal. These microcopy changes resulted in a 104% increase in conversion rate and 15% growth in online users for TurboTax, gaining 2% in market share. Principles of good microcopy include building a relationship, having a human tone, and responding to the user.