This book provides an expert deep dive into building full stack GraphQL applications. It covers the technologies used throughout the book, including GraphQL, React, Apollo, and Neo4j Database. The book introduces the concept of thinking in graphs and explores how to build a simple business review application using these technologies. It assumes some basic knowledge of web development, JavaScript, Node.js, APIs, and databases, but does not require experience with each specific technology. The goal is to show how these technologies fit together and provide a full stack framework for building applications with GraphQL. The book covers GraphQL type definitions, querying with GraphQL, and how to model application data as a graph using SDL. It provides examples and explanations of how to traverse the data graph through GraphQL operations and execute queries against a GraphQL schema defined by these type definitions.