Sigrid Hodel-Hoenes is a Lecturer in Egyptology and Islamics at the University of St. Gall, Switzerland. She is the author of many works, including a book on the Egyptian goddess Sachmet. Hodel-Hoenes has been a frequent guest lecturer on tours to Egypt for more than three decades. David Warburton is an Egyptologist and Near Eastern Archaeologist who has taught Egyptian and Near Eastern Archaeology at universities in Switzerland, Denmark, and China.