Microsoft Word Page Setup:
Go to File/Page Setup. Choose Microsoft Word from the Settings pulldown menu.
Apply the settings to the Whole Document
Click the Margins button
Headers and footers: .5"
Check "Mirrored Margins" option in Microsoft Word
Click Page Setup while still in this menu
Go to Paper Size and choose Mange Custom Sizes from the pulldown menu
Click the + to add a new size
Type in your desired book size in the Paper Size boxes, i.e. 6 in and 9 in for a 6x9 book.
Enter .5 for Top, Bottom, Left, Right
Make sure the correct paper size is now showing in the bar next to the words Paper Size
Click Okay again
Your margins are now set.
InDesign/Quark Xpress Setup:
Go to File/New Document
Type in the size of your book in the Width and Height boxes, i.e. 6" x 9"
Set the margins as follows:
Your margins and file are now setup.