Lost Continents by L. Sprague de Camp

A concise, skeptical survey of the legends of vanished continents that traces how ancient sources, 19th-century speculation and occultism gave rise to modern claims about places like Atlantis, Lemuria and Mu; the book examines the historical origins of those stories, the selective reading and imagination that fueled them, and the geological and archaeological evidence that undermines grandiose reconstructions, mixing clear explanation with pointed debunking of popular pseudo-historical theories.