This document discusses the art of developing products with data. It provides examples of how a skin care brand called Versed leverages different types of data, from passive to active qualitative sources, at various stages of the product development process. The document emphasizes that while data provides useful insights, it is important to not overgeneralize from it and to reflect the brand's mission. Data should inform decisions but intuition still has a role to play. The process should also not end with just one data collection, but involve reflection and repetition.