Goals
Often, during performance evaluation periods, career development assessment, one has to define long term goals, how to get there, and more importantly, how to track progress.
While I don't like too much self help type of books or articles, and not that Tom Peters is in that business, but I found in one of his articles a very interesting paragraph:
No matter what you're doing today, there are four things you've got to measure yourself against. First, you've got to be a great teammate and a supportive colleague. Second, you've got to be an exceptional expert at something that has real value. Third, you've got to be a broad-gauged visionary -- a leader, a teacher, a farsighted "imagineer." Fourth, you've got to be a businessperson -- you've got to be obsessed with pragmatic outcomes.
I think that this is a very good start.