Your Brain: The Missing Manual is the book for "the rest of us" who don't want to or can't take in all the medical jargon that usually infests books about how the "little grey cells" work.
Matthew MacDonald takes the information about how the brain functions and breaks it down into usable chunks. He gives a brief but thorough explanation of several functions the brain performs in simple English, then explains how the brain's owner can make the best use of how the brain works. An analogy would be that instead of someone trying to explain what's under the hood of that great car, he shows you the control panel and HOW TO USE the car. Chances are, you don't need to know how many cylinders there are, what kind of oil it uses etc. because all you plan to do is USE the car and maybe do a bit of maintenance. Matthew MacDonald's approach is that of someone explaining just enough of how the brain functions so that it can be used more efficiently and to the owner's benefit. I heartily recommend the book, especially to staff and teens who could use the problem solving techniques the author includes in the book for learning, school problem solving, etc.