I absolutely love your book, it has helped me out a lot!
One thing I don't find in the 10th edition that I would have liked was a section for bridal lingerie. I'm having a hard time finding the right undergarments for my dress. I am going to wear a halter style ball gown so I have been looking for a full slip and a longline bra/bustier with optional straps so I ca make it a halter.
Honestly there are very few websites that I'm finding that offer good quality bridal lingerie in a variety of colors (my dress isn't white and nude options usually have limited sizing available) and sizes (if your plus size good luck finding anything at Victoria's Secret or Fredericks of Hollywood or that doesn't look like it belonged to your grandmother).
So far the only sites I have found helpful are David's Bridal (limited options and the store wouldn't measure me for a bra, I had to go elsewhere to get a proper measurement) and department stores like J.C. Penney. I think this would be a very helpful section.