So you want to start a book shop. Good! Ken’s not afraid of the competition; he’ll even encourage you. He wishes every building on his street would house a different independent book shop. He’s a proponent of idiosyncratic small businesses as an antidote to the bland, big-box sameness that plagues most American cities. So what advice would Kenneth Gloss, with his years of experience, impart to the neophyte bookseller? It’s simple: just be in great physical shape, and know everything.