In this AWS re:Invent 2023 session, Chris Hennesey, an enterprise finance strategist at AWS, presents a comprehensive guide to implementing FinOps (Financial Operations) in cloud environments. Hennesey discusses the importance of managing cloud costs, the challenges organizations face, and practical strategies for optimizing financial management. He covers key concepts such as cost visibility, allocation methods, and the cultural shift required for effective FinOps implementation. The presentation includes insights from Hennesey's experience working with over 500 customers, as well as best practices for building a FinOps team, selecting appropriate tools, and driving organizational change. Hennesey also shares a case study on how Amazon.com manages its own cloud spend, offering valuable lessons for other enterprises. This session provides actionable guidance for organizations looking to improve their cloud financial management and drive business value through FinOps practices.