Gian is author of several books dealing with often popularized world mysteries or so-called paranormal topics. Generally regarded as the "real life Kolchak," his influence has been significant. According to New York Times bestseller Randy Wayne White, "Through Quasar, the genre is elevated (finally!) to equal, even exceeds, the highest standards of investigative journalism . . . "
Originally identified with nautical mysteries (The Bermuda Triangle, Flight 19, Cyclops disappearance), he has created the most controversy in Cold Case investigation, virtually rewriting the Jack the Ripper case and becoming the most high profiled independent investigator of the East Area Rapist/Original Night Stalker cold case.
Over the last 27 years Q has become so identified with the real life pursuit of X Files type of mysteries that he is more commonly known by the unique distinction of “The Quester,” a title chosen from this website that plays off his own unusual surname. But he is most often known as Q-Man.
He has been the subject of dozens of TV documentaries and is a frequent guest on radio.