In this episode Phil and Regan talk graph theory! From its foundations in mathematics and computer science all the way up to implementations in Graph Databases and Graph Processing Systems, graphs have remarkable degree of applicability in a diverse range of problems in technology, and in general, problem solving. Phil and Regan also discuss more abstractly the distinction between databases and data processing systems in the context of graph data. The talk the history of graph databases from their humble beginnings in CODASYL right up to Neo4j and TypeDB. Tune in to discover the world as we know it in graphs!