This document provides an overview of digital marketing and discusses various digital marketing tactics. It begins by defining digital marketing and explaining that it involves promoting products and services online through tactics like social media, search, and email marketing. It then discusses developing a digital marketing strategy using the Customer Value Journey as a framework. This involves understanding each stage of the customer journey and using different tactics like content marketing, digital advertising, social media, and email marketing to move customers through the funnel. The document also provides summaries of upcoming chapters that will cover topics like developing a content strategy, crafting a digital advertising plan, and following best practices for social media and email marketing.