Bob, these are the only images I can find using Google. There were loads last time I looked;
http://www.orenfishing.ru/images/Knots/whipping.gif
http://www.fishing4fun.co.uk/how2fish/knots.shtml
Basically, I do the following;
1. Pull about 18" of line from the spool and trap the spool between your knees so you can keep the line under tension. Sitting down makes this easier!
2. Hold the hook in your left hand with the spade end pointing towards the spool of line.
3. Create a loop in the end of the line so that there's around 1" of loop extending beyond the spade and a tag end of 6" or so. Trap this loop and the hook with your left hand. You need to be able to see the shank of the hook. This is much easier than it sounds!
4. Making sure to keep on the tension on the line and whip 12 turns, starting at the bend end and moving up towards the spade. I make the turns using my right hand and trap the tag end using my second finger of my left hand. It's important to keep the turns under tension and alongside each other.
5. Pass the tag end through the loop and smoothly pull the line tight from the spade end. I moisten the knot at this point but I'm not convinced it makes much difference.
6. When the knot is tight it will need moving up tight, towards the spade.
7. Cut the tag end off.
I know that sounds awkward and long winded but it's not. I reckon I can tie a size 16 in 20 seconds or so.
When I was shown this knot as a kid I must admit it took me a while to be able to tie it quickly and consistenly but it's been of massive benefit.