From a mummy on board the Titanic to the pyramids’ alignment with the stars, from psychoactive mushrooms to the lost realm of Atlantis: alternative Egyptology has always focused on subjects that others shunned. Ever since the birth of mainstream Egyptology with the decipherment of the hieroglyphic script two hundred years ago, alternative interpretations and imaginative theories have flourished alongside it. They intertwined with egalitarian and spiritual tendencies in society during the nineteenth and early twentieth centuries, when ancient Egypt inspired countless mediums, artists, and movements from freemasonry to the Hermetic Order of the Golden Dawn. More recently alternative Egyptology has inspired comic-book authors and nationalist Chinese bloggers.It would be a mistake, however, for academics to simply view these alternative theories as fantasies that are best ignored. Their lasting popular impact needs to be assessed and (publicly) addressed by mainstream Egyptology, but they may in fact also open up fresh perspectives for research. The contributors to this volume explore various aspects of alternative Egyptology, assessing its impact on society and scholarship, and finding ways for mainstream Egyptology to relate to its alternative cousin.