Science and Education Publishing Digital Technologies 1 1 2015 07 20 Big Data and Visualization: Methods, Challenges and Technology Progress 33 38 EN Lidong Wang Department of Engineering Technology, Mississippi Valley State University, USA Guanghui Wang Cheryl Ann Alexander DT2015117 10.12691/dt-1-1-7 2015 06 27 2015 07 16 2015 07 20 Big Data analytics plays a key role through reducing the data size and complexity in Big Data applications. Visualization is an important approach to helping Big Data get a complete view of data and discover data values. Big Data analytics and visualization should be integrated seamlessly so that they work best in Big Data applications. Conventional data visualization methods as well as the extension of some conventional methods to Big Data applications are introduced in this paper. The challenges of Big Data visualization are discussed. New methods, applications, and technology progress of Big Data visualization are presented.