This document provides an overview of digital marketing concepts and channels. It introduces George Anagnostopoulos, founder and CEO of Socialab, a digital marketing agency in Greece. The document then outlines key digital marketing channels like social media, online video, search engine optimization, content marketing, and more. It also defines common digital marketing terminology like impressions, click-through rate, pay-per-click, user interface/user experience, and the marketing funnel. The presentation aims to educate attendees on digital marketing and promote an upcoming course on the topic.