What’s the single, most often expressed issue in the Life-Span Development course? Covering a lifetime of material. Instructors from across the country are clamoring for a streamlined text capturing the core concepts of life-span development. Essentials of Life-Span Development was carefully designed and constructed to deliver these core concepts, along with a strong applications focus reflecting the broad range of interests and backgrounds of students taking this course. And as always, with John Santrock’s texts, the latest research in the field is incorporated throughout.