>Crowds and Power, his 1960 magnum opus, captures his wide-ranging scope: Prompted by the mass politics of the early 20th century, it considered how crowds, throughout human history, have needed no leader to exist, to grow, and to become powerful.

Wouldn't normally have been part of my 'reading diet' but I truly cannot recommend Crowds and Power enough. Less scholarly in tone than you'd expect (in fact, it's hugely readable), it is a really captivating book.