Hi!! I designed my monogram on Microsoft Publisher. It measures 1.50 inches by 1.50 inches. Then I printed it out on my light colored cardstock and cut it out. Next I cut out 1.75 inch by 1.75 inch squares of blue cardstock which will be the monogram mat. Finally I glued my monogram to the blue cardstock. I used a medium sized glue dot to adhere the monogram to the front of the invitation to seal it. Hope this helps!