In this episode of 'Back to Basics', Gonzalo Ron explores web application session management. He discusses the importance of sessions for e-commerce sites like Amazon, and explains two common architectural patterns: sticky sessions and distributed session management using ElastiCache. Ron outlines the advantages and disadvantages of each approach, emphasizing the benefits of stateless services and distributed caches for improved reliability and simpler deployments. The video provides a clear overview of session management strategies for web developers and architects looking to optimize their applications.