The most popular developmental psychology books of 2026

Developmental psychology follows how people change across a lifetime. Most of the attention goes to childhood: how babies learn, how language and morality emerge, and what shapes a teenager. Useful for parents, teachers and students, and for anyone curious about how they became who they are. This list shows the ones first published in 2026.

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Positive Discipline
Cover of Positive Discipline

Positive Discipline

Roslyn Ann Duffy, MA Cheryl Erwin, Jane Nelsen, Ed.D.

Published 2026

352 pages