The review is pretty vague, but presumably the book is about the display: table CSS property, which IE8 will support as the first IE browser. The review says "

The review is pretty vague, but presumably the book is about the display: table CSS property, which IE8 will support as the first IE browser. The review says "the techniques that will be available to us very, very soon." Actually the techniques have been available for years in the other browsers, but obviously couldn't be used widely since IE didnt support it. The release of IE8 will not change that because IE7 (and even IE 6) will be around for many years to come. But of course it is a step in the right direction.