The document discusses the importance of understanding cross-device consumer behavior in digital marketing, highlighting that 70% of media professionals find cross-device marketing to be a critical focus. With a significant rise in mobile device and app usage, businesses are shown to benefit from tailored marketing strategies that account for multi-device interaction, leading to higher engagement and conversion rates. The document concludes with actionable recommendations for marketers to adopt a cross-device approach, such as committing to the strategy, conducting market research, and optimizing campaigns based on user behavior across devices.