Book excerpt: A cutting-edge synthesis of science and practice, this book covers everything from sports-related concussions to less common types of mild traumatic brain injury (mTBI) and related complications. Preeminent authorities review what is known about mTBI in childhood and adolescence—including its biomechanics, pathophysiology, and neurological and neurobehavioral outcomes—and showcase evidence-based clinical evaluation tools and management strategies. Challenging areas such as evaluating complicated mTBI and treating persistent problems after injury are discussed in detail. Also addressed are forensic issues, injury in very early childhood, and other special-interest topics.