Allan, I am going to respond via email direct to you. The explanation might be a little lengthy and maybe not of interest to general public.

Allan, I have read your introduction several times now. I am sorry for the person selling those books, that he/she did not realize the value. But that is the way of it. Truth is little valued except by those who hunger and thirst after righteousness. However, I am glad that your friend shared them with you, indeed Truth cannot be horded. Thanks for giving us this brief glimpse of God's working in your life. Ellis

Ellis, I've been rethinking my friend's find in the second-hand book store.  Who knows if the store owner actually realized the value of those books, and felt he could not price them so as to make money for himself on the sale.  Just a thought.  I once came across a used Bible among the books in a Mennonite second-hand store, and decided I would buy it.  But when I went to pay for it I was told it was free.  They didn't feel they could put a price on the word of God.