Encyclopaedia of Information Technology and Communication Science is really very unique in terms of coverage, scope, elaboration, usefulness and futuristic perspective. It will provide readers with a user- friendly approach towards acquainting themselves with various select traditional and newly emerging field of world communication science and information technology. Everyday we see that these sciences and technologies have varied fields of study, which are always growing. The Present work is a unique initiative to provide the most comprehensive coverage to the subject area in question. This encyclopedia mainly focuses on the following areas: Introduction to Information Technology & Communication Science; Multimedia Information Graphics, Design & Printing; Computer Programming and Hardware Systems; Internet, E-mail, Network System and Computer Security; Music Science and Technology; Audio Visual Technology, Photography and Design; Elements of Advanced Communication System; Mobile Phone and Mobile Computing; and Speech Recognition Tools and Technologies.