Any notices or other communications provided for in this Agreement shall be sufficient if in writing. In the case of Recipient, such notices or communications shall be effectively delivered if hand delivered to Recipient at Recipient ’ s principal place of employment or if sent by certified mail, return receipt requested, to Recipient at the last address Recipient has filed with the Company. In the case of the Company, such notices or communications shall be effectively delivered if sent by certified mail, return receipt requested, to the Company at its principal executive offices.