Edwidge Danticat's prose has a Chekhovian simplicity--an ability to state the most urgent truths in a measured and patiently plain style that gathers a luminous energy as it moves inexorably forward. In this book she makes a strong case that art, for immigrants from countries where human rights and even survival are often in jeopardy, must be a vocation to witness if it is not to be an idle luxury.