Mary Ellen Mark (born March 20, 1940) is an American photographer known for her photojournalism, her portraiture, and her advertising photography. She has had 16 collections of her work published and has been exhibited at galleries and museums worldwide. She has received numerous accolades, including three Robert F. Kennedy Journalism Awards and three fellowships from the National Endowment for the Arts.

Belief in the coming of a Messiah poses a genuine dilemma. From a Jewish perspective, the historical record is overwhelmingly against it. If, despite all the tragedies that have befallen the Jewish people, no legitimate Messiah has come forward, has the belief not been shown to be groundless? Yet for all the problems associated with messianism, the historical record also shows it is an idea with enormous staying power. The prayer book mentions it on page after page. The great Jewish philosophers all wrote about it. Secular thinkers in the twentieth century returned to it and reformulated it. And victims of the Holocaust invoked it in the last few minutes of their life. This book examines the staying power of messianism and formulates it in a way that retains its redemptive force without succumbing to mythology.