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 deposited in the United States mail, postage prepaid, registered or certified, and addressed to the Executive at his/her last known personal address on the books of the Company or, in the case of the Company, at its principal place of business, attention of Senior Attorney, or to such other address as either party may specify by notice to the other actually received.