This course will teach you the basics of sewing a button. You will learn how to thread a needle, knot the thread, and sew a button securely onto fabric. You will also learn how to choose the right type of button for your project, and how to measure the correct distance between the
From Wikipedia
Cut and sew is a manufacturing process used in garment factories to make custom garments. A whole piece of any fabric is first placed on a cutting table or run through a cutting machine. A garment piece or shape is then cut out and sent for sewing through the garment assembly. A cut-and-sewn garment can include any custom measurements and fabric.