The Forever Transaction: How to Build a Subscription Model So Compelling, Your Customers Will Never Want to Leave by Robbie Kellman Baxter. This book examines how businesses can transition to a membership economy by building long-term customer relationships through subscription models. It focuses on the importance of creating a compelling “forever promise” that delivers value to customers and justifies recurring payments. The book provides a detailed framework for developing and scaling membership models, including building a strong business case, choosing the right team, testing and learning, selecting appropriate technology, and addressing common setbacks. It also explores key metrics for evaluating the success of membership models and strategies for overcoming challenges such as customer churn, subscription fatigue, and going global.