Drucker’s The Effective Executive and CISSP Posted on April 30, 2020 by Wentz Wu I really love Drucker’s “The Effective Executive.” It inspires me so much so that I practice the concept in everything. So does in security and CISSP! The Effective CISSP: Security and Risk Management Share this:Click to email a link to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Twitter (Opens in new window)Like this:Like Loading... Related