I have a book put out by Simplicity called "Simply the Best Home Decorating Book" that has very clear instructions on all kinds of home dec stuff. It has lots of drapes - I'm pretty sure they have inverted pleats. Maybe you can get it from your local library. I think I bought mine at JoAnn's.

Donna

Hears a link. Scroll down about 1/4 of the way

Here is a link that might be useful: pleat

I'm not sure what you are calling inverted pleated Drapes
but check out pleaters tape, it makes pleating very easy,
no sewing for the pleats.

Gemfire

Rufflette makes a great inverted pleat tape. you can gt it at www.draperysupply.com. If you prefer to not use a pleater tape,it can be done, and well. Several people have posted pics of theirs on the Custom Home Furnishings web site.

www.castec.com

www.pfaffusa.com