We must start at the beginning of the row:
Firstly, you need to allow 12 -15 cm (4.5 – 6 in) of the new yarn.
Tie a knot (gently) and raise it as close as possible to the first stitch.
Leave the tail behind with the old yarn, and proceed to knit as normal, with the new yarn.
When you wish to remove the knot, simply untie it.
Cut the remaining yarn. This works best with yarns containing at least 70% wool, as the friction holds everything together.
When knitting with cotton or acrylic yarns, make a little knot at the end.
This is the right side of the work:
This is the wrong side:
Carolina – So Woolly
PS: Interested to learn the stitch on the images?