STEP #1
First loosen the lacing at the back until there is a gap of about 6-8 inches. Put the corset around you.

 STEP #2 
Once the corset is in place,  fasten the front busk; do the top clasp first and the rest should follow.

 STEP #3 
Pull the loops gently then tighten the lacing progressively towards the middle from both top and bottom until you are happy with the fit. There should be a pleasant snug feeling that should be comfortable.

 STEP #4 To finish, tie the ends in a bow at the back. 

Tip:  One should not try to lace the corset closed, or even very tightly on the first several wearings, due to the fact that new corsets need "breaking in time". After a short period of time, they mold to your body shape and the material takes the strain of waist reduction evenly. Placing too much pressure on the corset at the outset may damage the fabric or pop stitches. In addition, it may cause you discomfort and a negative feeling toward your beautiful new garment.