[The episode has three friends in it: Joey Svendsen, Amy Alderman, and Hayne Griffin] Joey read a book that captures the American history of adolescent girls’ commitment to having the best possible body. You can check out “The Body Project: An Intimate History of American Girls” here. With some of the book’s contents as the context, Joey, Hayne and Amy talk through women’s arduous struggle toward gender equality and how far along society has come, while Joey now having read this …