^It's two French braids down the part, but a Dutch braid would be easier to master for this hairstyle. A Dutch braid twists outwardly and a French braid inwardly, so the latter is trickier. Notice the difference:
French braid
5purposedriven.wordpress.com
Dutch braid
instructables.com
It's very difficult to explain braiding in words or step-by-step illustrations, as it's a tactile, mobile technique you learn by watching and practicing. There are decent tutorials on Youtube, just type in "Braiding".