Book excerpt: This ground-breaking volume explores the relatively new academic field of Bnei Anousim studies (also referred to as descendants of New Christians, Conversos, or Marranos), whose Jewish ancestors in Iberia were forcibly converted to Catholicism from 1391 through to the fifteenth century. Chronologically, this book focuses on the eighteenth century, a later period of Inquisition activity marked by the Portuguese Inquisition’s relentless attacks against the Jewish “heresy” and the resultant mass exodus of New Christians from Portugal to Brazil. Several chapters concern the contemporary phenomenon of descendants of these New Christians seeking their Jewish roots. However, among a population that has retained almost no memory of their origins, how authentic are their Jewish roots? After the passage of hundreds of years, how much of what they perceive as “Jewish” is truly a lost Sefardi heritage? This volume addresses these questions from the perspectives of history, demography, genealogy, anthropology, and genetics.