Heather Dune Macadam is the author of the inter­na­tion­al best­seller and Pen Award Final­ist 999: The Extra­or­di­nary Young Women of the First Offi­cial Trans­port to Auschwitz, trans­lat­ed into 18 lan­guages, and the producer/​director of its com­pan­ion doc­u­men­tary film, 999. Her first book was the best­selling mem­oir Rena’s Promise: A Sto­ry of Sis­ters in Auschwitz. A New York State Coun­cil of the Arts Fel­low and recip­i­ent of a Soci­ety of Authors Research Grant, she is a board mem­ber of Cities of Peace: Auschwitz and the direc­tor and pres­i­dent of the Rena’s Promise Foun­da­tion. Her work in the bat­tle against Holo­caust denial has been rec­og­nized by Yad Vashem in the UK and Israel, the USC Shoah Foun­da­tion, the Nation­al Muse­um of Jew­ish His­to­ry in Bratisla­va, Slo­va­kia, and the Panstowe Muse­um of Auschwitz in Oswiec­im, Poland. She and her part­ner, Simon Wor­rall, divide their time between East Hamp­ton, New York, and Here­ford­shire, England.