Abdul Wahid is a research scholar and colleague of me at University of Lahore. He is bright student as well as researcher. I enjoy reading his works. I found this work of him a good contribution to the field. Whereas study is concerned, it investigates intralingual errors among ESL Learners at master level. These Intralingual errors are categorised as, omission, addition, fragment, selection, simplification, structure of sentence and overgeneralization or false analogy according to rank and fequency. Errors in structure of sentence were at the highest rank 50.37%. The observed reason was poor assessment by the teachers. Samran Ahmed Waraich (Research Scholar at University of Lahore)