Many libraries do not have copies yet, as it is far from 'mainstream' reading for most people.
I propose that we can all do a small deed that can/might be a huge favor to our former 'brethren' in the 'Truth'. Check with the local library, see if they have the books on the shelves. If not - ask if you can contribute books. Give them the IBSN number and they can order it if they will. Or they will often let you purchase them and donate. Some libraries will even offer to put a statement on the inside fly-leaf that it was contributed in someone's name if you like.
I know that in my 'doubting years', the availability of these books without having to find them on the internet, might have saved me a decade or more of captivity.
Wadda' ya' say?
Jeff