2-at-a-Time Socks: Revealed Inside. . . The Secret of Knitting Two at Once on One Circular Needle; Works for any Sock Pattern!: Morgan-Oakes, Melissa: 9781580176910: Amazon.com: Books
Ditch Your DPNs for Knitting Socks With Magic Loop | Craftsy
Magic Loop Technique: How To Knit in the Round Using a Single Long Circular Needle – tin can knits
How To Do The Two At A Time Cast On For Magic Loop | KnitFreedom
Ravelry: Two at Once, Toe-Up Magic Loop Socks pattern by Knit Picks Design Team
2 Socks at-a-Time, Magic Loop - v e r y p i n k . c o m - knitting patterns and video tutorials