Section 1 (Chapter 2, Modeling Flights and Cities, to Chapter 5, Refactoring the Data Model) is essential to understand graph modeling concepts that you will use in your daily routine. We cover how to model a graph, how to query it, how to evolve a graph database to accommodate changes in the domain, and how to translate a RDBMS data model into a graph design.

Section 2 (Chapter 6, Modeling Communication Chains, to Chapter 8, Recommendations and Analysis of Historical Data) are more reference oriented with models that you might need for optimization or for specialized cases. Topics covered are modeling chains and advantages of modeling chains, modeling access control, and designing recommendation systems based on the data present.