A color and a flower are enough to go on for decorating. One of my first weddings was coordinated for a bride that wanted daylilies and purple. And one of my most recent, 15 years later, was for someone who wanted a vibrant blue and daisies. Completely different and both very beautiful.

Choose a time in history that fascinates you and use that as your theme.

Consider Regency England, the Roaring 20's, The Renaissance, Scotland's Highlands, Jazz music, etc. This theme can influence your decorations, music, activities, and food.

Display black and white prints of your pictures.

Decorate with glass and lace. If you can find detailed old tea sets and silverware, even better. This pairs well with old books as well.

If you are getting married near a holiday, you can use that theme. This works particularly well for Christmas, but could be used for Independence Day, Halloween, Valentine's Day or other holiday as well.

Literally decorate with all white (or white with just a touch of light blue, gold, silver or other color).

A white cake and white bouquet are also beautiful.

Maybe you aren't interested in planning a theme around a specific book, but the thought of books in general is appealing.

There are a lot of great ideas that incorporate books in centerpieces. It goes well with vintage themes and rustic themes. You can use books themselves, use book pages for papercrafts, and decorate with letters (Scrabble tiles work well).

Give books as gifts to guests.

This works especially well if it's a book, show, or movie that you enjoy together or that is meaningful to your relationship. Beauty and the Beast, Harry Potter, Star Wars, The Greatest Showman, ... they all have terrific possibilities.

Consider adding a fun photo backdrop for your guests.