Arturo de Hoyos is Grand Archivist and Grand Historian of the Supreme Council, 33°, S.J., and an executive officer at the Scottish Rite's headquarters, the "House of the Temple," in Washington, D.C.The author, editor, and translator of more than 25 books and many articles, he's considered America's foremost scholar on the history, rituals, and symbolism of Scottish Rite Freemasonry, and most other Masonic orders, rites, and systems.He has travelled and lectured extensively on Freemasonry, and been featured on numerous television and radio programs, including NBC Dateline's "Secrets of the Lost Symbol," CNN's "The Situation Room," ABC Nightly News, Washington D.C.'s FOX 5 News, WAMU Radio's "Metro Connection," The History Channel, The Voice of America, and more.