This tutorial explains how to integrate a pivot table into a React application using AG Grid and Cube, focusing on creating an efficient analytical API and using AG Grid's features to display data. Pivot tables are described as tools that summarize large datasets into aggregated, meaningful views using measures and dimensions. AG Grid is highlighted for its extensive features suitable for enterprise applications, available in both community and enterprise versions, with pivoting capabilities in the latter. Cube is introduced as an open-source analytical API platform that creates APIs over databases, facilitating high-level data manipulation without direct SQL queries, and includes a caching layer for efficient data retrieval. The guide walks through setting up a Cube project, connecting it to a Postgres database, generating a data schema, and creating a query to fill the pivot table. It then details steps to incorporate AG Grid into a React app, including installing necessary packages, creating a pivot table component, and configuring data transformations and aggregation functions. The tutorial emphasizes AG Grid's documentation and encourages experimentation with its features, while also inviting engagement and feedback on the tutorial's content.