"Essential Scrum: A Practical Guide to the Most Popular Agile Process" by Kenneth S Rubin is a comprehensive book published in 2012 that provides a detailed introduction to the Scrum framework. Written in English, this trade paperback format book spans 496 pages and serves as a valuable resource for those looking to understand and implement Scrum in their Agile development process. With a focus on practicality, this book offers insights and guidance on how to effectively utilize Scrum to enhance team collaboration, prioritize tasks, and streamline project management.