Home › Authors › Michael J. Maher 👤 Michael J. Maher 5 books Books by Michael J. Maher 7L : The Seven Levels of Communication 2014 7l The Seven Levels Of Communication Go From Relationships To Referrals 2010 John Charles Thomas 2006 The Educational Philosophy Of American Catholic Hierarchy In The 20th Century 2005 Advances in Computer Science - ASIAN 2004, Higher Level Decision Making 2004