It is near the end of the day and Ms. Lyons has one minor task to complete before going home. All she has to do is hand a brochure to a professor and thank him for using Norton textbooks. Afterward, she'll grab a quick dinner and begin the 90-minute drive back to Amherst. She will then answer 25 to 30 e-mail messages and spend a couple of hours preparing for the next day. Many nights she works well into the small hours.