The Preview area of the Print Booklet dialog box lets you review color thumbnails of the printer spreads created by your selected imposition style. You can also see the printer’s marks you’ve specified in the Print dialog box.
Click Preview on the left side of the dialog box. To flip through the printer spreads, click the scroll arrows. Click the left scroll arrow to go backwards from spread to spread. You can also drag the scroll box to change printer spreads.
Click Summary on the left side of the Print Booklet dialog box to view a summary of current booklet settings. Check the bottom of the Summary area for any conflicting settings.