José Luis Espejo (1965- ) is a Catalan researcher and prolific writer(a). His subjects range from Leonardo da Vinci to comparative mythology to Hitler.
In 2009 he published Los hijos del Edén: toda la verdad sobre la Atlántida  (The Children of Eden: The whole truth about Atlantis), described at the time as the definitive Atlantis book. In this 680-page offering he insists on the reality of Atlantis, but not necessarily with that name.
His latest book, Ecos de la Atlántida  (Echoes of Atlantis), reviews the destruction and aftermath of an ancient civilisation, which he contends was destroyed 11,500 years ago. He equates Atlantis with Atalaentre of the Hindus, Aztlan of the Amerindians as well as the Hebrew Garden of Eden.
It would appear that the nature of this 512-page book required an understandable amount of speculation.