How to work a k1-b/r:
All of the shaping increases in the Princess Lace Panel Cardi are worked as k1-b/r. This is the abbreviation that we came up with to describe my favorite way to increase stitches without leaving a hole. It is worked by knitting into the stitch in the row below the next stitch on the needle and then knitting the stitch on the needle. Because you are knitting into a stitch and not pulling up a strand, as in a m1, the new stitch does not disrupt the tension of the previous row nearly as significantly. This increase is very easy to work and the new stitch fits in neatly and snuggly with the ones surrounding it.
Another thing that I love about this increase, when you work two k1-b/r next to each other, specifically when working raglan shaping, a neat straight line of slightly raised stitches is formed.