Why do you buy the books you do?

Wouldn’t every publisher, agent and writer want to know the answer to that one?

I’ve been on the Goodreads site, rating the books I’ve read. Analysing my own behaviour as a reader, I’ve been surprised by what I’ve picked out: historical fiction, adventure, romance, thriller, literary, fantasy, young adult, psychological, crime, contemporary, epic, speculative/science fiction, […]