Developmental Psychology

A 468-page lifespan development textbook covering heredity, prenatal growth, and every stage from infancy through late adulthood. Used in university psychology courses as an open educational resource.

Martha Lally, Suzanne Valentine-French

An open textbook from College of the Canyons that follows child growth from conception through adolescence, with chapters on prenatal development, infancy, and middle childhood. Built for early-childhood education courses.

Alexa Johnson

A 219-page developmental psychology textbook adapted from Lumen Learning that walks through life-span growth, developmental theories, and every major stage from infancy to late adulthood. Used in community college courses under a CC-BY license.

Lumen Learning

A 185-page study by David Elkind that applies Piaget's developmental theory to educational practice, written for teachers who want to understand how children think at each stage. A foundational text for anyone studying cognitive development.

David Elkind

A 156-page guide from Virginia's Early Childhood Development Alignment Project that maps developmental milestones from birth through kindergarten across social-emotional, language, cognitive, and physical domains.

Office of Early Childhood Development, Virginia Department of Social Services