Choose your book review niche
"Book reviews" is too broad; the most successful book review blogs focus on a genre (literary fiction, science fiction, fantasy, historical fiction, romance, narrative nonfiction, self-help, business books) or a reading identity (diverse voices only, debut novels, classic literature, books-to-film).
A focused niche builds a loyal audience who trusts your taste because they share it. When a reader who loves historical fiction finds a blog dedicated to that genre, they know every review is relevant to them — and they return because the curation matches their interests.
Ask yourself: which genre or reading identity do I read deeply and consistently? That is your niche. A blog that reviews one genre with depth and conviction will always outperform a blog that reviews everything with diluted attention.