Zero to Five draws on scientific research from a wide range of experts, including Diana Baumrind (parenting styles), Dimitri Christakis (screen time), Adele Diamond (neuroscience and executive function), Carol Dweck (growth mindset), Alison Gopnik (child psychology), John Gottman (marriage and conflict resolution), Megan McClelland (executive function), Patricia Kuhl (language acquisition), Ellyn Satter (feeding children), Dan Siegel (emotions), Paul Torrance (creative thinking), Grover Whitehurst (literacy and reading comprehension), and more.
James Stark is a singer, vocal instructor, and musicologist with a deep interest in vocal pedagogy. He has taught for over twenty-five years at Mount Allison University in New Brunswick. His work focuses on the history and techniques of singing, particularly in relation to the bel canto tradition. His book, Bel Canto: A History of Vocal Pedagogy, is a significant study that explores historical singing methods and analyzes them using scientific research, making it a valuable resource for vocalists and scholars.