William P. Liberi, Ph. D. is a founding principal of PERISCOPE, and has over thirty years of experience in behavioral intervention with a special interest in executive development and retention.

Dr. Liberi (Bill) works primarily in the areas of executive coaching, senior team development, culture change initiatives, and development planning for managers and executives. He specializes in helping individuals and teams improve interpersonal communication and influence. His work has focused on companies ranging in size from small family owned businesses to Fortune 100 corporations.

Bill has most recently worked with organizations in the following ways:

Coach managers and executives for high performance;

Assess and develop high performing leaders and managers;

Facilitate group sessions to increase understanding and commitment to new strategic directions.

Bill also maintains a clinical practice that centers on life and transition issues. He holds a BS in Psychology from Union College and a Master's and Doctoral degree from Temple University. He is a current member of a number of professional organizations including the American Psychological Association and is licensed to practice in both Pennsylvannia and New Jersey. He is actively involved with the Center City (Philadelphia) Residents’ Association and has served on the Advisory Board of a Temple University Doctoral Program in Psychology.