''This Diary Will Change Your Life'' is guaranteed to make the year 2009 stand out. Where previous diaries have emphasized social change with tasks such as 'Try making the Dalai Lama lose his temper', or 'Spy on MI5 employees as they leave the office', the latest edition insists on setting everyone's mental outlook to 'rosy', with a range of brilliantly inventive tasks that are accessible to all. ''This Diary Will Change Your Life 2009'' brings out the creative impulse in everyone, and channels it into healthy artistic self-expression, rather than into cut-your-own-ear-off neurosis. 'Guaranteed to make you smile' - ''The Times''. 'Playing along with this book might not make your life any better - but it sure as hell will make it more interesting' - ''News of the World''.