First edition fiction by famous authors
DH went through his fictional books and took out a bunch to get rid of. This is a good thing but there are some that are first editions by famous authors.
Is e-bay the only place to check if these are worth anything or is there another site I can find out? I stupidly had gotten rid of first editions years ago without ever thinking that they might be worth something.
When do you decide if a book is worth holding onto because the value might increase?