Video: Invisible Circular Cast-On
The invisible Circular Cast-On is used to start in the center of a project that is knit in the round.
Casting on into a ring of yarn places the stitches on your long circular needle. When you arrange your needle for knitting in the round, you pull the tail tight and the circle zips up and closes completely.
1. Be sure to end the cast-on with a stitch from under the yarn, not a yarnover. That way the last stitch will not fall off the needle. This results in an odd number of stitches.
2. If you need an even number of stitches, start the first working round with a yarn over.