The Big Book of Customer Data and Analytics is a sixth edition report that explores the importance of data and analytics in customer experience (CX) optimization. The report highlights the financial benefits of investing in customer data management and the challenges that brands face in leveraging data, such as organizational data silos and integration of data from diverse sources. The report draws on insights and experiences from an expert panel of 120 CX professionals to shed light on the current state of CX with regard to the application of data and analytics for enhancing CX efforts. The report also provides expert advice on how to use analytics to improve CX strategies. The report is a valuable resource for brands looking to develop approaches that offer full visibility over customer data and enhance their CX efforts.