 Regan lived in Stern's guest house for six weeks over the summer of 1993 with her then two-year-old daughter and nanny to help complete the book on time.Sloman also stayed over at Stern's house on weekends.One of the researchers hired to work on the book transcribed segments of Stern's radio show and interviews with his parents to produce around 10,000 words of text for Regan to go through.