This is probably the most common seam finish. This sample is intended to be for your reference. When you write sewing instructions, you will include advice regarding seam finishes. After sewing the 1/2″ seam, overlock/serge the seam allowances together and press to one side. These courses are designed for learners planning to go into the fashion/apparel production environment. Purchase the patterns for Level 1 tutorials here: https://tinyurl.com/AAA-L1-Patterns