CHICAGO, July 26 The Board of Directors of R.R. Donnelley & Sons Company today authorized a 4.3 percent increase in its quarterly dividend to 24 cents from 23 cents per common share. The higher dividend is payable Sept. 1, 2001, to shareowners of record as of the close of business on Aug. 10, 2001. R.R. Donnelley ( www.rrdonnelley.com ) is revolutionizing communications effectiveness by providing comprehensive and integrated communications services. These include premedia, digital photography, content management, printing, Internet consulting and logistics. The company's full range of solutions help publishers and merchandisers, as well as telecommunications, financial and healthcare companies, deliver effective and targeted communications in the right format to the right audience at the right time. The company serves customers in North America, South America, Europe and the Asia/Pacific Basin.