This program evaluation study used an objectives-oriented evaluation to determine the impact of professional development on effective communication to enhance leadership skills of school and district leaders in a southwestern Florida school district. Professional development is offered by the district to teachers, school leaders, district leaders, and staff members. Effective communication is the key to facilitating an impactful professional development training. Participants were 27 teachers, administrators, and support staff in the district who completed a survey and an interview. Results showed the professional development increased communication and collaboration between and within schools in the district. School leaders showed more engagement, increased open communication, and offered professional development specific to school-site needs. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]