What's that they tell you about a book and a cover?

My sister-in-law, Paige, (pictured here with her daughter, Jane, behind the medium sized coffee I am sipping - after having scrounged up two dollars worth of change from our laundry room to purchase it) and I, took all of our kids to Barnes and Noble this morning. Maybe it's the expertly arranged display tables or the inviting smell of scones wafting seductively through the aisles that make me every time I visit pine over pricey amounts of paperbacks, hardcovers, even trade journals on topics that under normal circumstances would never pique my interest. "This time," I swear to my covetous self, "I will cut out those carbs, Feng Shui my bedroom, or make sense of William Faulkner using this perfect book." And then I leave empty handed, like always.