The article explains how Neo4j graph databases work and their benefits over traditional relational databases. The key points are that Neo4j models data in a way that resembles how humans think about relationships, making it easier to model complex data structures. It also eliminates the need for normalization, which can be time-consuming and cumbersome with relational databases. The article provides examples of how researchers used Neo4j to build complex graph models, including one for biomedical research, and demonstrates how to create a simple graph model using the Northwind retail database. The author argues that traditional relational databases are outmoded and that Neo4j's visual approach to data modeling makes it easier to work with complex data structures.