Digital marketing is a broad term that refers to the practice of promoting products, services, or brands using digital technologies. It includes a range of marketing activities that use the internet, social media, mobile apps, and other digital channels to reach consumers. Some common examples of digital marketing include:

1. Search engine optimization (SEO): This involves optimizing a website or app to rank higher in search engine results, making it more visible to potential customers.

2. Pay-per-click (PPC) advertising: This involves placing ads on search engine results pages or other websites and paying a fee each time someone clicks on the ad.

3. Social media marketing: This involves using social media platforms to promote products or services and engage with customers.

4. Email marketing: This involves sending marketing messages to a list of email subscribers.

5. Mobile marketing: This involves using mobile apps, SMS, and other mobile channels to reach customers.

To understand digital marketing, it's important to have a basic understanding of how these different tactics work and how they can be used to reach and engage with customers. It can also be helpful to have a solid understanding of data analysis, as many digital marketing efforts involve collecting and analyzing data to understand consumer behavior and optimize marketing efforts.