First published in 1841, Charles Mackay's Extraordinary Popular Delusions and the Madness of Crowds, with its vivid descriptions of celebrated financial manias ('bubbles'), is often cited as the most powerful book ever written about market psychology. Mackay chronicles many celebrated bubbles to demonstrate his assertion that "every age has its peculiar folly; some scheme, project, or fantasy into which it plunges, spurred on by the love of gain,...