Former senator, vice president, and presidential candidate Al Gore and his wife, Tipper. In the two years since the presidential election they have been working on the new book, Joined at the Heart: The Transformation of the American Family. The book explores the changes that have taken place in families over the past few decades, using examples of families the Gores have met along the way. Tipper Gore is a former photojournalist and served as adviser to the president on mental health policy. Their other book is the collection of photographs The Spirit of Family.