The arrow printed on the pattern indicates the stitch that should be at the center of the sleeve (midt pa ermet) I started with 73 stitches, so the 37th stich was the mid-point. I counted backwards to find where I should start the pattern. I also needed to increase one stitch each end of the row every 4 rows. So I next drew a solid line on the pattern at the starting point which jogs out one stitch every 4 rows. This helps me keep track of the increases as well and I don't need a pesky stitch counter, which kept getting in the way. I highlight the row I'm doing next, knit that and highlight the next row. I'm alternating my highlight colors, but that doesn't really serve any special purpose. When I put the work down I highlight the next row and indicate with an arrow that that is where I should start next. Each time I complete a pattern I throw that one away after transfering the starting line to a new page. This is the third page I've done now. So I have almost completed 3 complete pattern repeats.