This lesson provides an overview of the module’s topics, introduces the classic "Seven Bridges of Königsberg" problem and explains how its solution led to the foundational concepts of nodes and edges. The original images on slide 4 can be found under the following links: https://en.wikipedia.org/wiki/Seven_Bridges_of_K%C3%B6nigsberg https://en.wikipedia.org/wiki/File:Konigsberg_bridges.png https://commons.wikimedia.org/wiki/File:7_bridges.svg