Understanding long-term economic cycles is the key to investment success. In this provocative new book, David Barker reveals the astonishing record of the Kondratieff Wave to predict economic cycles. Discovered by a Russian economist in the early 1900s, the Kondratieff Wave foretold the Great Depression, the post-World War II boom and the inflationary spiral of the 1970s. Now, the Kondratieff Wave is pointing toward a massive slowdown that would wipe out the investment portfolios of even the most well-heeled investors. Clearly written and well-documented. The K Wave provides striking evidence of a 50 to 60 year economic cycle in which periods of prosperity are inevitably followed by periods of adversity. A fascinating book, The K Wave will interest investors of all types.