As marketing strategies continue to evolve, mobile location data has emerged as a crucial resource for generating valuable insights that drive ROI. With its unparalleled ability to deliver targeted messages to the right audience, at the right place, and at the right time, human mobility data has become a game-changer for the advertising industry. We have also seen amazing results in using location data to measure the ROI of marketing campaigns. In this article, we elaborate on how location data can be applied to high-impact use cases in advertising, marketing, and related technology.