After hearing all the recommendations for this book on this I decided I needed one. I watched EBAY for several weeks for used books and found them selling as high as $70. I then checked out Amazon.com where I found a "Student Manual" for $32.70 with free shipping. It has the plastic comb binding which will lie flat when open and a soft cover. I does look like a good book and about half the bookstore price. * * * * * * * The book you have ordered is a companion to AoE, and contains a series of labs experiments for a student to go through. I have a copy here and went through it a few years. It's well worth adding to your library, but don't confuse it with the real AoE. Jack -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads