Adobe Spark is an integrated web and mobile tool that allows users, particularly teachers and students, to create and share visual stories in three formats: Spark Page, Spark Video, and Spark Post. It is free to use and enables the creation of engaging content such as web pages, animated videos, and social media graphics without requiring design experience. The document highlights various applications of Adobe Spark in English language teaching, showcasing its potential for projects, presentations, and class-related events.