For many executives, a corporate board seat is a coveted opportunity. But any invitation to take one should not be considered lightly. While the business world is overflowing with advice for companies in selecting board members, prospective directors themselves have little guidance in determining whether accepting a board seat is the right move for them. In decades past, the decision was easier, because a board seat was often a ceremonial position. Today, a directorship is a serious, even awesome responsibility. Directors play a key role in setting corporate strategy and appointing senior executives. They are called upon to advise companies that must manage risk in an increasingly complex global operating environment and navigate disruptive technologies that threaten their business models.