Please add tags to the advance filter options for recommendations.

This would be a great feature. I have a lot of custom tags and it would be great to get filtered recommendations for books that are similar to books that have a specific tag I have created.

I'd love this feature too. There's a certain mood/something in common in some of the books I love that doesn't quite fit the rest of what I read (and also love). Sometimes the recommendations hit it on the nose for this, but I'm not always in the mood for that kind of book and want to be able to seek it out specifically at certain times.

Hey Abbie! yeah that's what I mean i.e. in the same way we have Non-Personalized / Personalised Similar Books if you could get the same functionality based of a custom tag?

Hey! Could you elaborate on this a little further? Do you mean you'd like Recommendations based, for example, on a custom tag you'd created? :-)