CHICAGO, Nov. 8 -- R.R. Donnelley & Sons Company (has been awarded a multi-year, multi-million dollar contract extension to produce both domestic and international encyclopedias and other reference books for World Book, Inc. Since 1917, World Book, Inc. has set the standard for providing accuracy, objectivity, and reliability in research materials for both children and adults and continues to publish the number-one selling print encyclopedia in the world, The World Book Encyclopedia. Paul Gazzollo, President of World Book, Inc. stated, "RR Donnelley continues to demonstrate that they truly understand our business and are committed to providing us with the resources needed to support our growth. Their global book manufacturing platform is in strategic alignment with our own international expansion, and their plants in China have proven to be well positioned to supply our Pacific basin operations. Our expectation is that the success of this relationship over the past 50+ years will continue well into the future." John Paloian, Group President, RR Donnelley Publishing & Retail Services added, "When two companies elect to work together for over 50 years, as RR Donnelley and World Book have, then it is clear that both parties have determined how to optimize their partnership so as to bring maximum value to each other. This close working relationship enhances the speed and efficiency of the production process and allows both sides better to anticipate future needs. We will look forward to bringing additional value to customers such as World Book as we continue to leverage our global manufacturing platform in support of their expansion into new markets."