In one sentence, describe what the following article is about:

When you bought your corset, it may have come laced up for you. If this is the case, don’t worry about lacing the corset unless the corset is laced incorrectly. It should look similar to how a shoe is laced (with X’s), but with the strings meeting in the center of the back instead of at either end. If your corset came pre-laced, make sure the laces meet in the middle. The two laces should form an “X” with the center of the ex meeting on your spine. If you have an even number of grommets (the hole where the lacing goes in), start by pulled the lacing up through the bottom of the top grommets. If you have an odd number of grommets, you lace from the bottom to the top Lacing should be provided when you buy your corset. If it is not, avoid ribbon if you are planning on having your corset laced firmly. Lace should be used. Take the right string and pull it to the left side. If the first grommet has laces coming out through the top of the hole, then pull it down through the top of the hole on the other side. If the first grommet has the laces going down into the hole, then pull the laces up through the bottom of the hole on the other side. Repeat on the left side after the ride side is done. Keep your laces even. Make sure you keep the ends of the laces even with each other as you pull the laces through the grommets. With the X complete, keep going down the line until you reach the center. You should end up with X's alternating between being "on top" of the corset and "below" the corset. With the top section done, repeat the same process with the second string but start in the middle. Continue until you reach the bottom of the corset.

Summary:
Check to see if the corset came pre-laced. Start at the top grommet if you do need to lace your corset. Create X’s with the strings. Lace down to the center. Start again from the center and repeat.