Often, when we talk about graph databases and their most suited use cases, people point out that social networks are a good use case for graphs. While this is true, in a way, it pigeonholes graph databases. Graph databases are versatile tools that can be used to model various domains and problems. In this book, we pick up a nonsocial example—travel, and explain how we can model data for various subsystems that would be used in a travel website using Neo4j.