The book examines the shift needed to our systems and society to enable lifelong, experiential, interconnected learning journeys. The book outlines the vision for a learning ecosystem that spans technology, learning science, policy, and organizational factors. "Modernizing Learning" is the outcome of a multi-year study recently completed by the Advanced Distributed Learning (ADL) Initiative, a Department of Defense (DoD)-sponsored program that conducts research, development, testing, evaluation, and policy stewardship to enhance distributed learning. More than 85 stakeholders from across communities contributed, bringing together perspectives from K-12 educators, military trainers, technology specialists, and government leaders.