Jon F. Nussbaum (PhD, Purdue University) is Professor of Communication Arts & Sciences and Human Development & Family Studies at Penn State University. He is the past president of the International Communication Association and former editor of the Journal of Communication. He is co-author of Communication and Intimacy in Older Adulthood (2009) and co-editor of The Routledge Handbook of Health Communication (2011).

Contents: Jake Harwood: Lifespan Communication Theory - Margaret J. Pitts/Mary Lee Hummert: Lifespan Communication Methodology - Carol A. Miller/Laura S. DeThorne: Communication Development: Distributed Across People, Resources, and Time - Beth Bonniwell Haslett/Wendy Samter: Parent-Infant Communication - Helen G. M. Vossen/Jessica Taylor Piotrowski/Patti M. Valkenburg: Media Use and Effects in Childhood - Robert L. Duran/Diane T. Prusank: Children's Peer Relationships Outside the Family - Jennifer H. Waldeck: Communication and Learning - Piotr S. Bobkowski/Autumn Shafer: The Digital Bridge into Adulthood:Media Uses and Effects in Adolescence - Michael L. Hecht: Adolescent Identity and Substance Use Prevention - Kevin B. Wright/Shawn King: Adolescent Online Friendship and Peer Relationships - Emerging Adulthood Communication - Alyssa Ann Lucas: Emerging Adults in College: Communication, Friendships, and Risky Sexual Behaviors - Tara G. McManus: Commitment and Marriage - Michael W. Kramer/Karen K. Myers: Communication and Workplace Socialization: A Lifespan Examination of the Work-Life Interface - Andrew C. High: Friend Me, Poke Me, Then Comfort Me: An Exploration of Supportive Communication in Online Social Networking Sites - Jordan Soliz/Craig Fowler: Sandwich Relationships: Intergenerational Communication - Dennis S. Gouran: Communicating in Professional Life The Nature and Evolution of Superior-Subordinate Interactions - Diane T. Prusank: Spouse and Parent: Television Images of Major Roles of Adulthood - Older Adulthood Communication - James D. Robinson/Kathleen B. Watters: Media Use and Effects in Older Adulthood - Fran C. Dickson/Patrick Hughes: The Socially and Sexually Active Later-Life Family Member - Carla L. Fisher/Mollie Rose Canzona: Health Care Interactions in Older Adulthood - Howard Giles/Chan L. Thai/Abby Prestin: End-of-Life Interactions.