Jacky Daydream is an autobiography written for children. It includes many photographs from JW's childhood, very similar to those in fashion in blogging circles at the moment (grin). At the end of each chapter is a question for the reader asking 'in which of my books will you find a character who...?' She really has become a brand. It would be interesting to compare it with Enid Blyton's The Story of my Life, with its many concealments, not to say downright lies. One can't imagine Blyton admitting to having peed on stage whilst reciting. Times change.
Edit. P.S. I now see that Wilson claims to have read The Story of My Life when she was six or seven.