Letters from Erastus: Field Notes on Grace is available from Levellers Press for $19.95.

It will be available from Amazon after April 21, 2015.

Here is a quick link to Levellers Press   http://bit.ly/1FrACr4

Or go to levellerspress.com

The author would prefer that you support an excellent independent publisher by purchasing from Levellers Press, (who will mail it the day of your order) but if you must order from Amazon, here is the link: Amazon