The Religion of Ancient Greece: Now Available!
This little book is one of dozens of Creation Series titles made available in the early 20th century. I have edited about half a dozen prior; this one is definitely more academic even than the prior few, and delves at several points into the difference between Greek religion as conceived of in the then-recent past, and the then-modern period according to archaeology. Zeus here is just Zeus; not Jupiter, not an interchangeable deity from latter days as many modern voices believed.
It contains a fairly lengthy exposition on the major deities of Greek religion and their basic back-stories and is invaluable, potentially, to any pagan delving into the same.