Upgraded our personalized book recommendation emails.

We have a personalized book newsletter where readers can input up to 6 favorite books, authors, genres, or topics. Then we email them book ideas based on their desired frequency (weekly to every 4 weeks).

What did we add?

1. The ability for readers to change the frequency from weekly to every 2, 3, or 4 weeks.
2. The ability for readers to change the variables that go into the selection (so you can update the books, genres, authors, etc, that it is built on).