The first one we did was a centred zip.
The we did a lapped zip.
You do need a special invisible zip foot for your machine for this one. I just borrowed the one from the store.
The lady at the store used this quilters tape so you could be more accurate with your stitching. I picked some up, as it will come in handy also for other things.
We did talk about having a class that was designed more for zippers in household items rather than clothing. I would be interested in taking that if it comes up.
Are you confidant when it comes to sewing zippers in items?