The newsletter contains the latest research within the four PENs and is published quarterly by the PEN Administrative Center at Washington University in Saint Louis.

2010 - Volume 4 Issue 1 - Winter
2009 - Volume 3 Issue 4 - Fall Issue 3 - Summer Issue 2 - Spring Issue 1 - Winter
2008 - Volume 2 Issue 4 - December Issue 3 - August Issue 2 - May Issue 1 - February

2007 - Volume 1 Issue 4 - November Issue 3 - August Issue 2 - May Issue 1 - February

Bibliography of past articles ordered by PEN