No More Federal Income Taxes

So, I bought this book a while ago called The FairTax Book, by Congressman John Linder and Neal Boortz, Despite the fact that it's a book on taxes I found it to be quite entertaining and extremely informative, Basicly it outlines one of the most researched tax reform plans ever, Replaces the productivity punishing and overall unfair federal income tax withholding system with a FAIR federal retail sales tax, please excuse my lack of punctuation and enter key, but what do you guys think of this idea'question mark'