Marjorie Kostelnik is dean of the College of Education and Human Sciences at the University of Nebraska, Lincoln. She entered the field of early childhood as a Head Start teacher and child care provider before receiving her doctorate from the Pennsylvania State University. She was on the faculty at Michigan State University for 22 years, serving as director of the Child Development Laboratories, then as chair of the Department of Family and Child Ecology. Currently, Dr. Kostelnik is a serving member of the Nebraska Governor's Early Childhood Coordinating Council and the Lincoln Community Learning Centers Advisory Board.
Kara Gregory has worked in centers and classrooms with children from infancy through first grade. She consults with preschool and elementary school early childhood teachers and support staff on many topics, including social and emotional development, oral language, early reading and writing, and play. Her publications have also focused on these areas. Dr. Gregory also teaches courses in child development and early childhood education for Michigan State University.