Kathleen Stassen Berger and new co-author Kendra Thomas tell the story of human development in an engaging, accessible narrative style – with signature personal anecdotes, engaging case studies, and findings from thousands of articles and datasets. Their new critical thinking framework teaches students to “think like a developmentalist” to apply developmental science principles to a range of scenarios – whether they are studying attachment or aging, puberty or parenting. Five principles of developmental science are introduced in Chapter 1, repeated throughout the text, and connected to chapter content in a way that helps students remember and transfer their learning to other courses and professional settings.