The 2019 edition of the INFORMS TutORials volume features 10 chapters on the common topic of “Management Science and Operations Research in the Age of Analytics.” We are delighted to be able to present this exciting collection of chapters focusing on cutting-edge issues around collection of data, usage of data, data analytics, optimization analytics, as well their applications in important practical areas. The readers will find treatment of these topics in the chapters to be accessible yet rigorous, demonstrating a number of novel methods while addressing the issues of implementation. We group chapters in this volume around three overarching themes, as described next.