This document provides an introduction to digital literacies. It discusses how digital literacies can be broken down into four parts: information management, creating materials, effective communication, and identity. It then guides the reader through exploring the data that companies like Facebook, Google, and Apple have collected about them through their online activities and devices. It encourages readers to be mindful about what information they share online and how this could impact their security and careers. Follow-up activities include completing surveys about the data collected and reading additional blog posts on digital literacies.