Casting on circular needles, but don't join?
I am attempting to knit a garment, from the Fitted Knits book by Stefanie Japel, the two toned shrug, and this first instruction has me confused.
How does one knit on circular needles if one doesn't join?
The first instructions say: With larger needle (the size 8 24"circular needle) and main color (of yarn), cast on 43 stitches. Do not join.
Is this magic loop knitting? Is there the alternative of knitting on straight needles? I am confused.