Amazon.com (ISBN 0553277472, Mass Market Paperback)

Arguably one of the most profoundly important essays ever written on the nature and significance of "quality" and definitely a necessary anodyne to the consequences of a modern world pathologically obsessed with quantity. Although set as a story of a cross-country trip on a motorcycle by a father and son, it is more nearly a journey through 2,000 years of Western philosophy. For some people, this has been a truly life-changing book.