This book is a 6 X 9, 236 pages, that compares Jesus to the prophet Jonah. I'm not a creative individual so i'm trult open to the best concept, but i picture a cover having the old testament prophet Jonah looking similar to Jesus; like the ocean version of Him looking tattered from 3 days and 3 nights in the belly of the whale, a crown of seaweed wrapped around his head, skin burnt and clothes eroding from basking in digestive juices. I also prefer a more grisly image ala Mel Gibson's 'Passion of the Christ' as opposed to a pretty boy.
Other Jonah emblems would be the sea, a whale, the city of Ninevah, a boat and a tempest, Related emblems for the Christ comparison would be the empty tomb, a lamb, the Galilee region, etc.
Another idea would be the tattered Jonah and beaten Jesus as mirror images of each other.
With the text on the backside, I would like a whale at the bottom near the last sentence as I'm trying to invoke Jonah typology in the desription.