Douglas S. Massey, Henry G. Bryant Professor of Sociology and Public Affairs at Princeton University, will advance two books on immigration in America. The first book will illuminate the beliefs and practices of recently arrived legal immigrants to the United States, examining how practices condition the process of assimilation in various domains of American life. The second will undertake a systematic analysis of how the patterns, processes, causes, and consequences of U.S. migration have changed in the last twenty-five years.