Yarn over's have many uses, creating eyelets, increases, and a fundamental technique that's helpful to be comfortable with before you try your hand at brioche.
The Simplingo bunting pattern is a great little pattern to practice on, not only is it small, but you also will learn how to make yo's between two knit stitches, a knit and a purl stitch, and a purl and a knit stitch.
This is due to the fact that the increases happen every 3 rows, which gives a more aesthetically pleasing bunting triangle compared to increasing on every other row.
You start off using kfb (knit front and back) to increase at the beginning point.
Once you've completed the firsts 6 rows, you'll start using a yo for the increases. On row 7 you'll work a yo between two knit stitches:
Then when you work the yo's on the wrong side row, you'll work them in-between a knit and a purl, and a purl and a knit.
You only need about 25m/ 27y/ 10g of DK weight yarn for each bunting. You can download your free Simplingo bunting pattern here or you can buy a Bunting kit which includes 5 different weights and colours of yarns along with the cotton twill to hang them from in the Yarn Tasting Bunting Kit.