Both books, in paperback format, are between 300 to 350 pages. So first I'd like to say that the condensing of years and years and years of that kind of extensive research into publications that are less than 400 pages is nothing short of miraculous!!!
Have you ever seen “reports” promulgated by the United States government? It takes 300 pages to present the summary of whatever it is that's being reported on! (O.o)
RE: The Signature of God
Are you're trying to convince me that an extremely wise and intelligent Being is the author of one of the greatest books ever written? Well then quite frankly I think that the mysterious Hebrew codes, the mathematical signature of God, and the "Undesigned Coincidences" are totally unnecessary convolutions. The information and arguments presented did nothing to convince me that the Bible is God-breathed inspired words. Hey! I'm a tough audience!
RE: The Existence of God
If one decides to tackle a topic like the existence of a Supreme Being, why start with the ancient Greeks? There were many civilizations, nations, or people who lived and walked the earth long before citizens of ancient Greece showed up. Take one look at their mythology and it's plain to see that they were a pretty confused set of folks. They had gods that treated human beings like they were toys to play with, pieces on a chess board. I suspect that if one went back far enough in the history of mankind, they would probably find a point in time when all men knew the one true God. His existence wasn't a question, it was a given. :)