dr. diane ravitch. [applause] >> thank you so much, randi. i can't think of anyone that i would rather have introduced me -- [inaudible] spent not working? sorry. i wanted to thank randi because she came here specifically to introduce me. i am very grateful to her. i'm grateful to her for her friendship, for her leadership, for the courage that she showed him standing up for teachers. i'm very happy to be at a philadelphia free library, particularly because today is the day that my book is published and i can't tell you what that means to an author to be on publication day. as i was sitting in the room back there, which i guess is called a greenroom, i looked on amazon and i discovered that my book is number 105 on the first day applaud mac -- and i know from years of looking at amazon a lot of books ahead of it are cookbooks. [laughter] it's the number one ranked book in outlook policy on amazon.com. it just came out today. so i'm really excited and pumped. i'm also excited to be here in philadelphia. you are ground zero. pennsylvania is gro