Share 'How do you find out about content before reading a book?'

I really need some advice. More than once in the past few months, I've picked up a book to read because I liked the genre it was listed under and/or because I liked the description on the cover or a review I read about it on Goodreads or something.    However, then, once I get into the book, I've discovered that it had more sexual content than I like or certain moral themes I don't like or violen…