Steven Covey, The Seven Habits of Highly Effective People (Free Press, 2004) Steven Covey, The Leader in Me: How Schools and Parents Around the World Are Inspiring Greatness, One Child at a Time (Free Press, 2009). Physical Demands/Working Conditions: The majority of this job involves walking or standing, mostly indoors with the exception of playground duty, dismissal, fire drills, and outdoor field trips.