Reply To: Printing Booklet Cover to Left Edge

If you are folding the pages in half then you need to print the first and last page as a spread.
Make a copy of the Outside Front Cover and place it after the Outside Back Cover (Front on the right, back on the left) and print this with bleed on Top, Bottom and Outside. You may need to adjust the text box sizes to make sure nothing overlaps from front to back.
Fold between the two pages, trim the edges and you have a self cover page for your publication.

PS you may need to do the same for the inside front cover if you have text that is to print on the inside