The pattern based on hexagon motifs (and partial motifs for a fine-fitted shoulder and cap sleeve).
Motifs joined together using any of the three methods: sewing, invisible 'joining-as-you-go' or textured 'joining-as-you-go'. All of them described in written instructions and pictures.
The border is knitted in stockinette stitch and rolls naturally.
US crochet terms.
The sample was worked in Linate CotoLin Golden. A substitute is shown below.