Former host on E! Entertainment in the US, children's author, Heather Hartt-Sussman, discusses the power of saying "no" -- and her lovable "Nana" series (Nana's Getting Married, Here Comes Hortense! and Nana's Summer Surprise) and "Noni" series (Noni Says No and Noni is Nervous). She is the former host of the daily series The Gossip Show on E! Entertainment Television in the United States.