I thoroughly enjoyed this book, it is a great quirky idea to do something different to mark a milestone birthday. It is very well written in an easy flowing style with plenty of humour. Sophie does some totally daft, (and sometimes scary) things just because she set herself a challenge. With a fierce determination to complete her challenge you have to ask why?....To which the answer is well why not, I'm not old yet. In these days when TV and books show extraordinary feats of endurance by almost superhuman people it's good to hear of more reachable challenges by someone who is not an athlete and who like most of us faces the day to day challenges with her family and her weight. The book is very well illustrated throughout with photos taken by her supportive husband. So real, so funny ...but did she complete the challenge - you'll just have to read it to find out.