A garment sewing pro explains and divides elastic choices she finds most useful into three categories: waistband, specialty, and lingerie.
Sewing with Shirring Elastic on a Sewing Machine – Julia Hincks
How to Insert Elastic into Casings: Tips for Making it Easier
Sewing Glossary: Shirring With Elastic Thread – the thread
The Right Thread for Every Project - Learn & Create - BERNINA
Advice On Knotting Elastic Stretch Magic Thread
How to crochet around an elastic band - Fosbas Designs
Your essential sewing machine thread guide - Gathered
Elastic For Every Project - Threads
Tutorial: shirring with elastic thread — Made by Rae
Sewing Thread! What's the Difference and Does it Matter? — Pin Cut Sew Studio