I would love to have Robert Alter's books on Logos:
* The Art of Biblical Narrative (reads like a guided tour of the Old Testament, highlighting interesting aspects of the storytelling you've never seen before - like getting a museum guide to shine the light on small but highly significant parts of paintings to shed new light on their meaning)
* The Art of Biblical Poetry (does the same for OT poetry)
* The Five Books of Moses, A Translation with Commentary - worth it for the introduction on language and storytelling alone
* The Book of Psalms, A Translation with Commentary
It would be great to have his references to hand when studying any part of the OT on which he comments, as he sheds a fresh new light, from a thorough understanding of the Hebrew, storytelling and poetry writing, literary composition etc.