How to fix a dropped stitch using a crochet hook
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How to fix an accidental YO (yarn over) increase
The accidental yarn over (YO) increase is created when the yarn is not in back to knit or in front to purl. The yarn makes an extra cross over the needle, adding an extra stitch.
How to measure gauge on a swatch
Measuring your gauge on a stockinette stitch swatch is something you may have to do for every project you start. Watch this video to see how.