In the high-technology settings in which cutting-edge artifacts are traded, Darr finds that sales work deviates sharply from our traditional cultural images. The educational level and technical skills of the sales force are increasing, sellers' and buyers' engineers engage in co-development, and long-term collaborative relationships are replacing brief sales encounters. A growing number of work tasks and skills previously performed and mastered in the design or production phases have become part of the sale of emergent technology. New control mechanisms over the work of the sales engineers are also appearing. Unlike most ethnographic studies of salespeople, which focus on the insurance, finance, and retail sectors., Darr's groundbreaking book turns to the daily sales practices of an information economy.