Important Please Read! by Northwestern College - Thursday, March 15, 2018, 1:46 PM Number of replies: 0 Spring 2018 eBook DatesTrial Access Period: March 19th - April 2ndOpt-in Purchase Period (permanent access): April 3rd - May 1st IMPORTANT: When you click the link on APRIL 3rd, YOU ARE BUYING the eBook. ALL clicks made beginning APRIL 3rd are NONREFUNDABLE and FINAL SALE. Permalink