The 4-Hour Work Week by Timothy Ferriss
From Amazon.com:
Forget the old concept of retirement and the rest of the deferred-life plan–there is no need to wait and every reason not to, especially in unpredictable economic times. Whether your dream is escaping the rat race, experiencing high-end world travel, earning a monthly five-figure income with zero management, or just living more and working less, The 4-Hour Workweek is the blueprint.