When I first started selling on eBay it was football books. My son sorted out several. They were hardbacks, in excellent condition complete with dust covers.I weighed them, decided on a fair postal charge and submitted them for auction. They all sold.
Unfortunately, it never occurred to me they would be bought by someone from a different country. Far from making a healthy profit, I actually ended up out of pocket.
Anyway, so you don't make that mistake and learn properly you can