"Every writer has advice for aspiring writers. Mine is predicated on formative years spent cleaning my father's calf pens: Just keep shoveling until you've got a pile so big, someone has to notice. The fact that I cast my life's work as slung manure simply proves that I recognize an apt metaphor when I accidentally stick it with a pitchfork. . . . Poetry was my first love, my gateway drug--still the poets are my favorites--but I quickly realized...