Earlier this year, I was asked by my former boss, a literary agent who moonlights as a teacher, to talk to his Publishing Trade Overview class about my job as a sales rep. My first reaction, of course, was to panic. I mean...ME, speak in front of a class? Oh no. What if I messed up? What if I didn't explain things clearly, or just started repeating myself in circles, or went off on a tangent and couldn't come back to my original point?