Manipulating your yarn to create two layers of fabric at the same time. If you can work k1, p1 ribbing, you can double knit.
Holding the Yarn in Stranded Knitting
Continental vs English Knitting: Which Style Should You Use?
The 5 Knitting Styles (And How to Knit Them)
How to double knit - Step by step instructions for beginners [+video]
The 5 Knitting Styles (And How to Knit Them)
Learn the Continental Style of Knitting
How to Knit: An Easy Beginner's Guide
The Chilly Dog: Skillful Knitting Unleashed - Knit Confidently
Find Your Style: English versus Continental Knitting –
Knitting Styles: Continental vs. Throwing (with Video)
Learn the Continental Style of Knitting