I'm not the OP, but if you slow read you will quickly find out whether the books is worthwhile or not. I don't think finding books is that hard, especially nove

I'm not the OP, but if you slow read you will quickly find out whether the books is worthwhile or not. I don't think finding books is that hard, especially novels. For technical knowledge, I regularly read reference books and literature surveys, so I know what's in the book before hand and I know the quality. Keeping track of authors is hard in the beginning, but keeping track of publishers is easier and yields relatively the same results. That's why they charge so much...