A. Research the current market value of your books using online platforms like Amazon, eBay, or specialized book valuation websites. This will give you a benchmark to understand if the valuation offered by Compramostuslibros.com is reasonable. If you find discrepancies, consider listing your books on other platforms where you might get a better price.
B. Consider bundling multiple books together when selling. Sometimes, selling a lot of books can increase the overall valuation as opposed to selling them individually.