This video knitting tutorial will help you learn how to knit the afterthought yarn over increase. Increases are a way to add stitches to your work and are used to shape your fabric. This technique combines a yarn over (YO) with a stranded increase. The effect is similar to the yarn over increase, but with a smaller eyelet hole.
Step 1: Take your working needle and insert it through the space under the ladder (the space between two stitches) before your next stitch.
Step 2: Wrap your working yarn around your working needle and pull it through the space.
Step 3: Knit the next stitch off your main needle.