FairTax would free markets, individuals from income tax. In “The FairTax Book,” Rep. John Linder (R-Ga.) and libertarian talk radio host Neal Boortz offer a witty and straightforward explanation of the political and economic consequences of making April 15 “just another day.” Published by Regan Books, it hits bookstores this week. And if tax reform is not a “hot” topic now, then give this book a month on the New York Times bestseller list for things to change. The FairTax is a bold idea to replace the income tax with a national sales tax. What’s so bold about it? Not...