This crochet pattern is an intermediate pattern.
You’ll have to know how to :

Chain
Slip Stitch
Single crochet
Double crochet
Half double crochet
Increase
Decrease
Work front post stitches
Work in front and back loops only

You’ll need about 5 oz of worsted weight yarn and hooks sized H and J.

It’s sized to fit heads between 19” and 23” comfortably.

Yes, you can sell items made from my patterns. All I ask for is a link to my shop, referencing where you found the pattern.