There is nothing more practical than sound thinking. No matter what your circumstance or goals, no matter where you are, or what problems you face, you are better off if your thinking is skilled. As a manager, leader, employee, citizen, lover, friend, parent - in every realm and situation of your life - good thinking pays off. Poor thinking, in turn, inevitably causes problems, wastes time and energy, engenders frustration and pain. Read a sampling of all the possible ways in which the mind can work to discipline itself, to think at a higher level of quality, to function better in the world.