Joel A. Garfinkle

This is one of those business books that could double as a self-help book. His idea, that you need to do more than just maximize performance, can translate into your off-work life, although his focus is life in the corporate world.
His program consists of what he calls PVI: Perception, Visibility, and Influence. Being a good or skillful worker is kind of worthless to your future if those around you don't know you exist. PVI is the blueprint to change that.