This video tutorial by Wicked Goodies shows how to make five different styles of gingerbread house windows including cut holes, stained glass, lit candy, overlay, and freestanding style.
BOOK #1 LINK: https://www.wickedgoodies.net/gingerbread-house-dough-recipe/ BOOK #2 LINK: https://www.wickedgoodies.net/gingerbread-house-decorating-building/