Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Voices That Matter is a professional conference/convention series geared towards creative, business and IT practitioners. The Voices That Matter Conference Series puts emphasis on its opportunities for learning from and networking with leaders within the industry''s community. The conference format consists of conversations rather than the more traditional keynote speeches. Conference speakers include Jakob Nielsen, Joshua Bloch, Billy Hoffman and Steve Krug, author of the Don''t Make Me Think series. Voices That Matter is organized and produced by international media company Pearson (NYSE: PSO) and was founded by Pearson imprint New Riders in 2007.A large number of conference speakers are authors that have been published by Pearson Technology Group, a division of Pearson Education.