“Hope” can be a foreign concept to those in the midst of severe or suicidal depression. Yet, the book “Shades of Blue” offers just that – hope. Thirty-five essays written by individuals with different backgrounds and histories share diverse issues, and how they have managed to, if not overcome them, learned to manage them. Three of the contributing essay authors read excerpts from their essays at the independent bookstore, The Avid Reader, in Davis, California.