Any and all notices, requests, demands and other communications provided for by this Agreement shall be in writing and shall be effective when delivered in person or by overnight courier or delivery service, or three business days after being deposited in United States mail, postage prepaid, registered or certified, and addressed to Executive at his last known address on the books of the Company or, in the case of the Company, at the Company’s principal place of business, to the attention of the Chairman of the Board, or to such other address as either party may specify by notice to the other actually received.