Journalist Nancy Jo Sales says the Internet fosters a kind of sexism that is harmful to teen girls. Her new book is 'American Girls: Social Media and the Secret Lives of Teenagers.' Also, author Victor LaValle loved reading the horror stories of H.P. Lovecraft as a kid. It wasn't until later that LaValle recognized the racism in Lovecraft's work and felt the need to respond. His new book is 'The Ballad of Black Tom.'