Abdul Jabbar Hassoon Jerri (July 20, 1932) is an Iraqi American mathematician, most recognized for his contributions to Shannon Sampling Theory,It's Generalizations,Error Analysis,and Historical Reviews, and in particular his establishment in 2002 of the Journal: Sampling Theory in Signal and Image Processing (STSIP-ISSN 1530-6429) with over thirty top international experts as its editors, besides establishing its Sampling Publishing,also his contribution to the general understanding of the Gibbs Phenomenon,where he wrote the first book ever on the subject, published by Springer - Verlag,then he followed it by editing another book on Advances in Gibbs Phenomenon published by Sampling Publishing .He is the author of several other popular books:Introduction to Integral Equations with Applications,accompanied by a Students Solution Manual:Sampling Publishing,Introduction to Wavelets accompanied by a Students Solution Manual( The latter Manual was co-authored with Prof Masaru Kamada);Sampling Publishing.Other books include Integral and Discrete Transforms with Applications and Error Analysis:Marcel Dekker,and Linear Difference Equations with Discrete Transform Methods:Springer-Verlag. He had published over forty papers, with numerous lectures on his areas of research interest nationally and internationally. Jerri's main research interests include the areas of Integral and Discrete Transforms, Sampling Expansion and its Applications,History and Error Analysis,the Gibbs Phenomenon, Transform-Iterative Methods for Nonlinear Problems, and Operational Sum Methods for Difference Equations.