From Rosie & Me:
The Frida is an easy to sew pleated skirt perfect for the beginner, consisting of just three pattern pieces!
If you are more experienced and would like to tailor your Frida, you could add pockets, lining and or finish the waistband and pocket inserts with delicate piping.
The skirt closes with a zipper and a small button in the side seam. The pleats are stitched from the waistband to the hip and then fold open. This makes for a fitted skirt down to the hip.
Version A Is an easy version and therefore very suitable for beginners.
Version B Has side pockets in the front and is fully lined.