Extraordinary popular delusions and the madness of crowds is a partial reprint of Memoirs of extraordinary popular delusions. S.l., s.n., 1841. Confusión de confusiones is a partial reprint of a work originally published in 1688.
Extraordinary popular delusions and the madness of crowds by Charles Mackay. ISBN 0471133124. Published by Wiley in 1996. Publication and catalogue information, links to buy online and reader comments.