There are a lot of texts on World Religions written by Christians. I've read a lot of them and most of them are pretty bad, as in inaccurate and unhelpful.
One of the best I've read is Neighboring Faiths by Winfred Corduan. It would be awesome to have that on Logos. Another good one that approaches the subject from a very different angle is Stuart Hackett's Oriental Philosophy: A Westerner's Guide to Eastern Thought. I also think that Gerald McDermott's "Can Evangelicals Learn from World Religions?" is essential for anyone studying them.
Of special interest right now is Islam. There are a ton of mediocre and just plain bad introductions written by Christians to this religion, especially since 9/11 (some of them in Logos format...). But an absolutely fantastic text on Islam is "Encountering the World of Islam" edited by Keith E. Swartley.
If Logos wants to have a great set of texts on world religions, they should get these resources. [;)]
