Suggestion: Make Luther's 'Bondage of the Will' a Stand Alone Resource.
To quote Luther;
"Regarding the plan to collect my writings in volumes," he wrote, "I am quite cool and not at all eager about it because, roused by a Saturnian hunger, I would rather see them all devoured. For I acknowledge none of them to be really a book of mine, except perhaps the Bondage of the Will and the Catechism."
...ok, so maybe Logos should include Luther's Catechism along with 'Bondage of the Will'. [:D]