Wash and peel the carrots (or leave the peel on, it's preference). Then any thick carrots, slice in half lengthwise. Then slice them on a bias (diagonally). This looks nice for presentation purposes. About 1 1/2 inch - 2 inch long pieces are perfect! You can also keep your carrots whole, if you prefer that look. I would use the young fresh/skinnier carrots if keeping them whole.