The book entitled “APPROXIMATION OF CONTINUOUS FUNCTION ASSOCIATED WITH INFINITE TRIGONOMETRIC SERIES” has been written to requirements of the researchers of mathematics (All branches of Fourier Series, Summability and Approximation Theory).   

We are highly thankful to Dr. U. K. Shrivastava, Head, Department of Mathematics, Govt. E. R. Rao science PG College Bilaspur, Chhattisgarh, India for his constant inspiration and stimulating guidance throughout the course of present work. This work would not have been possible without his guidance, support and encouragement. Under his guidance, I successfully overcame many difficulties and learned a lot.