Here is yet one to vote for:
Face to Face: Martin Luther's View of Reality
But we shouldn't need to keep voting for these. If Logos can have a constant stream of EVERYTHING under the sun that comes from secular publishers that also publish horrible content that needs to be removed because Christians can't stomach it, then why oh why can't they automatically bring EVERYTHING from trusted Christian publishers they have carried for years (e.g., Fortress Press, Eerdmans, Zondervan, IVP, Baker, Baylor, Westminster John Knox Press, and so on) immediately to ebook format?
It's so frustrating to have to order this stuff from Amazon in Kindle format, or else wait an inordinate amount of time to get in from Logos, and then only after bugging Logos to get it.