Looks like this is going to be another fast seller. It was just announced a couple of days ago and is already almost up to 60% at $10 (SRP of $29.95, expected pre-pub price will be $19.95). As usually happens, once it reaches 100% of needed purchasers to go into pre-pub, it will probably go down even lower in Community Pricing as people realize this is the last chance ever to get such a great deal on it. There's no downside to bidding for it early on in the process. You just help it reach 100% sooner that way. You can always back out once it gets into pre-pub if you change your mind.
Hermann Gunkel was a famous and influential German Protestant Old Testament scholar in the early 20th century. He served as professor of Old Tesament at Berlin. He is noted for his contribution to form criticism and the study of oral tradition in biblical texts. He was an outstanding representative of the "History of Religion School."
EDIT: Here's the link: http://www.logos.com/communitypricing/details/6650