It is always entertaining to listen to the authors who appear on Thacker Mountain Radio each Thursday here at Off Square Books, but sometimes we lose sight of the fact that author appearances are also intended to be educational.  In furtherance of this  educational mission  we were lucky last night to have David Rees, "the number one #2 pencil sharpener" and author of HOW TO SHARPEN PENCILS (Melville House, $19.95) give us a demonstration straight from Chapter 14 on "Sharpening Pencils for Children."  It was a fun learning experience for all and Mr. Rees made it look so easy, but remember, he is a professional and has spent years honing his craft, so it would be advisable to purchase a copy of his book (which we now have copies signed by David Rees with a pencil he sharpened himself!)