One of the difficult steps when sewing a shirt, sometimes even when you are more experienced but particularly for the first time is the sleeve placket and the cuff. I'm pretty sure everyone wants them to look nice and tidy but can't figure out how.
This step-by-step tutorial of How to sew a Shirt Sleeve Placket and Cuff from Pauline Alice will help you. And there's a bonus: the tutorial is presented in not one, not two but 3 languages: French, Spanish and English. What a delight!