Davis spent five years researching and writing the book, conducted over 200 interviews of many people involved with the production of the show, and worked with the cooperation of co-creator Joan Ganz Cooney.
Davis spent five years. Davis was researching. Davis was writing the book. The book was conducted over 200 interviews of many people. These many people were involved with the production of the show. Davis worked with the cooperation of co-creator Joan Ganz Cooney.