How much of your work time do you spend doing actual work that leverages what you do best? And how much of your invaluable time and focus is chipped away by myriad distractions—of which the most pernicious might be email and its constant demand for your attention. I’m Tom Ehrenfeld, host of the Lean Enterprise Institute’s WLEI podcast. I spoke with author Cal Newport about his newest book, A World Without Email, where he challenges us to rethink why we need to be constantly plugged into communication that seldom helps us produce valuable work.