Here's a really interesting article that ran just prior to Nancy Horan's appearance and talk at Frank Lloyd Wright's Fallingwater this past Sunday and at the Oakmont Pulic Library today. Horan said she's heard from book clubs who have scheduled visits to Wright's architectural masterpiece after reading the book and she's also been gratified that fans of Wright have responded so positively to Loving Frank. I know many are reading the book in their book clubs so check out the article for some background on how Horan wrote the book.
More resources for Loving Frank:
Reading Group Guide