I have a set of volumes 1-9 of The Bookshelf for Boys and Girls, copyright 1948. Volume 1 is in poor condition and has been well used. See pictures. The rest are in very good condition. Are they worth anything?
They sell for as low as $4 per book on eBay right now.
Many people have old books they think are valuable and would like to sell. Most old dictionaries, references etc., have very little value, a few dollars at most. Encyclopedias dated after 1923 are essentially worthless but crafters may be interested for the old pictures. Goodwill, Salvation Army, etc., receive donations of tons of old encyclopedias, dictionaries and reference books but send them to recycling centers or dumps as they cannot use or sell them.