Subscribers pay about a quarter of the price subsequently charged for the magazine and book in bookshops. Most of the books are authored by Dr Peter Masters.
Books and magazine articles have been translated and published in many other countries.
As C. H. Spurgeon intended in 1865:
"We would ply the Trowel with untiring hand for the building up of Jerusalem's dilapidated walls, and wield the Sword with vigour and valour against the enemies of the Truth."