Barnes & Nobles is currently offering "The Origin of Species" for an extremely reasonable price: about $6 in stores or $4 on their web site. This is a pocket-sized hardbound book with gilt edges and a bookmark ribbon.
At this price, those so inclined could easily afford to buy several and set them free at coffee shops, laundromats, bus stops, hotels etc. thus providing the patrons of such places with something to read other than "Awake!" or the Gideon Bible.
The Page for this book at Barnes & Nobles is
here. Those who are curious to know what happens to the book after they set it free might find
Bookcrossing useful.
Those with more spare cash than spare time should feel free to hop on over to
PayPal and shoot a few bucks to james@jhuger.com along with a note saying that it's a donation for this project.