The sweater is worked from the bottom up. First the body and sleeve are worked separately in the round, before being joined for the yoke. The yoke is worked with raglan decreases, in the round to the slit. Then back and forth. At the end button and buttonhole
edges are worked along the sides of the slit.

There is an almost infinite number of textures and patterns to be created using only knit and purl stitches. For this design you can relax while knitting every other round and be a bit more alert while alternating a knit and a purl stitch on the opposite rounds