Here is a sampling of projects Michael Siegel created maps for:
   
Maps for the Schomburg Center for Research in Black Culture
   
RU Focus article
Atlantic Migration Black Loyalists Great Migration 1916-1930 Great Migration 1940-1970 Blues Migration
Underground Railroad 19th Century Emigration to Haiti Origin of Migrants 1940-50 Migration Streams Return to the South

    Maps for the Encyclopedia of Greater Philadelphia    

    Sampling of maps for books published by the Rutgers University Press:       sample map sample map