2018 Guide to Effective Proxies

2.1 Document cover | 5 6 TH EDITION | GUIDE TO EFFECTIVE PROXIES ARAMARK ARTHUR J. GALLAGHER & CO. AT&T, INC. AVISTA NOTICE OF 2018 ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT NOTICE OF 2018 ANNUAL MEETING AND PROXY STATEMENT Proxy Statement and Notice of May 10, 2018 Annual Meeting of Shareholders Notice of AT&T Inc. 2018 Annual Meeting of Stockholders and Proxy Statement