This was my first zipper. I found great support over at Margene's, and also in Nancy Wiseman's The Knitter's Book of Finishing Techniques - a book I refer to often. Click on each photo for detail:
Margene's suggestion to place pins or some sort of marker at even increments on both sides. Then, when you pin zipper you are sure sides are lining up.
Not surprisingly, the biggest challenge for this novice seamstress was the zipper placement, pinning and basting. Once the zipper is stabilized, the stitching was tedious, but not difficult. At first I thought "Well, I'll never do this again!". But in the end it all came together. I can see all the imperfections that I would like to improve upon for my next one. I wish I had chosen a darker color for my first effort because I think it would hide the mistakes a little better.
Oh, and don't waste your time hunting down a zipper in the shops! Go right to the Zipper Stop!