Which free book will you choose at Hadoop World? Hadoop or HBase? September 7, 2011By Jon Zuanich (@jonzuanich)No CommentsCategories: Community Hadoop Attendees of Hadoop World will receive a free copy of either Hadoop, The Definitive Guide (2nd edition) or the recently published HBase, The Definitive Guide. Take advantage of the Early Bird price which has been extended to Friday, September 9, 2011. Remember to select your choice when you register.