Reading is one of the most efficient ways to acquire information, and leaders need a lot of general information to keep perspective and seize opportunities. But reading does more than give us a toolbox of ideas. It actually upgrades our analytical tools, especially our judgment and problem-solving abilities.
Research by Anne E. Cunningham has compare the general knowledge of readers and television watchers. The readers not only knew more, but they were also better at deciphering misinformation. In other words, reading improved their judgment.