Tess Daly has reason to celebrate this week as the Strictly Come Dancing presenter is getting ready to launch her debut book, 4 Steps to a Happier Healthier You.And to mark the upcoming special occasion, the TV star shared a video with her followers on her Instagram to take her fans behind the scenes of her book shoot. Tess was a vision in the video as she rocked a number of stunning fashion looks. Check out the video below to see for yourself…WATCH: Tess Daly stuns in new video to celebrate book launch The book is clearly hugely important for Tess.