More than thirty thousand of John Glass' books have been sold.  The above titles are available on Kindle as are Amrach and the Paraclete and The Best is yet to come. 

However, his latest title, a novel, is considered to be his most important publication to date.

'Four' has at its core issues surrounding people trafficking.  It deals with pain and loss but the overriding theme is of redemption, hope and the triumph of the purposes of God over every obstacle.  It is due out March/April 2019.