What’s the Most Effective Way to Use a Book Marketing Service?

[benbaker]

I’ve been looking into using a book marketing service for my upcoming release, but I’m not sure which approach actually works best. Some authors say social media promos help, while others rely on email lists or paid campaigns. Since I’m still figuring things out, I’d love to hear real experiences from the community. What book marketing methods have worked for you, and what would you recommend to someone just starting their promotion journey?