Rachel Botsman’s piece on Daniel McCallum’s 1855 organisational chart offers a fascinating glimpse into the origins of visualising organisations (“Uncharted territory”, Spectrum, March 29 ...

Letters to 'News and Notes' Tony Cox and editor Sasa Woodruff read listeners' e-mails. Special Series From Our Listeners. Opinion Letters to 'News and Notes' June 19, 2008 9:00 AM ET.