"Of the top five books on the NYTimes advice and how-to bestseller list, half are about cooking" There are 2.5 books? Lord knows I've read novels with gratuito

"Of the top five books on the NYTimes advice and how-to bestseller list, half are about cooking" There are 2.5 books? Lord knows I've read novels with gratuitous cooking scenes, but I wonder whether that's what he means. One should also consider that cookbooks are a handy gift--about the right cost and heft.