David Gerber has achieved a remarkable feat in synthesizing and interpreting a vast literature on American immigration over the centuries in this short introduction. Sensitive to historical detail but also attuned to broader perspectives, this well-written and engaging book is full of insights about the causes, consequences, and legal context of immigration and reminds us that current immigration debates have a long history. Nancy Foner, author of From Ellis Island to JFK: New York's Two Great Waves of Immigration