Forbes -- Donald Asher has spent his career helping people get ahead. The author of 10 books, including Who Gets Promoted, Who Doesn’t, And Why, Asher, 52, travels the globe talking to colleges, universities and MBA programs about career development. He also works as a career coach for executives who make at least $200,000 a year. Asher’s specialty: employees who want to put themselves on the fast track, which means a promotion every 18 months.