There is a lot of information to wade through in this book. Probably suited for persons with an undergrad degree with at least some economics/finance background. Kindleberger essentially says the bubbles and crashes are the result of enormous expansions of credit and the credit source is 'international' for the most part. He describes the existence of parallel banking as a means of skirting regulations imposed by governments to prevent the greedy and corrupt from repeating the same thing happening in the future. As a history book he covers at least 500 years of financial history so the reading can get a tad tedious at times. This book although more descriptive than prescriptive does in the last chapter opine as to whether or not this may happen again and when. You'll have to read the book to find out how that works out.