Most cigar rollers can roll right or left handed.
With 1 wrapper leaf, you can complete 2 cigars, 1 left handed, 1 right handed.
The wrapper leaf is preparred by removing the center vein. You now have 2 wrappers. They are then placed on a board with the center, or straight side (where the vein was) towards the roller. (This is how you get left and right rolls).
The tips of the leaf always begin at the foot of the cigar. So one cigar starts out with the foot on the right, a right handed roll. And the other on the left side. This happens because the internal veins are always rolled into the cigar and the smoother side is on the surface for a nicer appearance.
Dave