It depends on the author, the genre and the size of my current TBR pile. I enjoy different series’ for different reasons; sometimes it’s the characters and the world that I adore while as others it’s the writer’s style. Heck, sometimes it’s even the audiobook narrator but that’s a topic for a different post. When it’s the writer’s way with words that I enjoy, I’ll often blindly follow them into their future endeavors because I trust that their style will carry-over, regardless of the genre. That being said, if the series doesn’t have at least a touch of paranormal in it then I probably won’t read it. No matter how much I love an author, I have no interest in reading contemporary romance. Period.
I usually go on genre reading kicks so if one of my current favorite Urban Fantasy authors decides to start a Paranormal Romance series; then I’ll typically follow to see if their love scene writing skills measure up to their action ones. And if the new series is a spin-off of an existing one, well then that’s also a no-brainer. Another factor is my TBR pile, it’s not often that there’s a lull in my review schedule but timing is everything and every so often the stars align and I’ll start something new on a whim.
I do research new series by favorite authors more thoroughly though, especially if I have somewhat of a personal relationship with them. I hate writing negative reviews of books by authors whom I adore; I feel extra pressured to like their stuff and would rather avoid certain unpleasant situations if I can. There’s no point in risking a friendship over something so easily avoidable. I’d prefer to continue enjoying one of their existing series than have my opinion changed by jumping blindly into something new.