Lots has already been said about the book in reviews, good and bad, so I won't go into my own opinion. I did however, want to say something about the mathematical side of the proofs used in this book, since many people without mathematical backgrounds seemed interested in the validity of this aspect of the author's claims.
The math used in this book is "correct" as far as the calculations themselves go. The author's addition, subtraction, multiplication and division are correctly figured as written. The problem though, is that Where he gets his numbers from, and the Reasons behind his figures and logic-chains unfortunately has NO logical validity.
Numbers and math can be manipulated however people see fit; that's what mathematics is good for - manipulation. Much like how we can formulate any sentence we like in a language, even if the sentence is grammatically correct that does not mean that it conveys a fact.
Purple bananas sometimes have evil intentions; cats with feet on their head instead of ears should be wary of them.
This could be a grammatically correct example of a statement in the English language, but it does not prove the existence of oddly colored bananas, the sentience of fruit, or anatomically freaky felines. The math in this book is much like the sentence above and would not be given any weight as "proof" to Anybody with a strong mathematical background.
I recommend to anybody following along with the math in this book to question the author's selection of numbers. Where did he get most of the numbers from that he uses in his proofs?
Where did he get the number 68,302 from to begin with, and why did he decide to divide it by 26 and 37? Further, why would he then subtract the result? Is it only for the purpose of arriving at another number that he was already looking for?
When the author "finds" a repeating number, what method does he use to select how much of it to pay attention to? Sometimes the author makes a division calculation and arrives with a number that has repeating .8888888 at the end. He then will go on to use just the 8, or 88, or 888 to manipulate other numbers - seemingly the choice of how many 8s he uses is just to arrive at a number that he wanted to arrive at beforehand.
Other times, the author ignores some digits in a repeating number, such as 68.370370370 - he will only use the 37, and ignore the 0. On other occasions, he will completely drop any digits in the decimal, and only keep the whole number. THIS IS NOT PROPER MATHEMATICS - The author seems to be deliberately choosing Arbitrary numbers *Just so that he will arrive at an answer He Has Already Decided That He Wants to Arrive At*.
The rest of the book is interesting and entertaining both. I have nothing to say of the author's other assumptions and proofs of his belief.
Please think of this book whatever you will, but do not let the mathematical "proofs" themselves convince you of any validity to the book's claims. They are Not.