The full name of this pattern is Dear Santa, let me explain. You can read why on my blog, see link below.

The cardigan is worked bottom up, and has lots of feinsmecker details.

The cast on method is Chinese waitress (but it is possible to use the cast on method you like).

The pattern on the sleeves calls for both small travelling cables and bobbles. The cables starts from and ends naturally in the ribbing.

The sleeves are worked in the round, while the body is worked flat with sturdy selvedge stitches, from which the stitches for the button bands are picked up.

The sleeves and body are joined together seamlessly (except for the kitchener stitch seam under the sleeves). The joining itself is worked similar to raglan, but with more shaping for the shoulders. It is worked like the contiguous method but upside down - or more correctly, downside up.

Short rows are used to shape the upper back, so that the fit along the neck should be perfect.