This document discusses the use of big data in marketing and consumer behavior. It defines big data and outlines its uses in marketing, including targeted advertising, customer segmentation, pricing optimization, and social media analysis. It also describes different types of big data useful for marketers, such as behavioral, transactional, and demographic data. The document then discusses techniques for collecting big data and applications in e-marketing, including personalization, targeted advertising, predictive analytics, and website optimization. Finally, it reviews several relevant literature sources on big data applications in marketing and consumer behavior.