Vaishna Narang, PhD, has four decades of teaching and research experience in linguistics. She is a Professor of Linguistics at Jawaharlal Nehru University (JNU), Delhi. Her research interests include general and applied linguistics, learning theories and pedagogical practices, application of linguistics in clinical practices of speech and language acquisition/learning, language and cognition, neurocognitive linguistics, and the genetics of voice. She has supervised more than 50 MPhil and PhD dissertations. Professor Narang has published 15 books and more than 100 articles in national and international journals of repute. Salonee Priya is a Visiting Scholar at Linguistic Empowerment Cell, Jawaharlal Nehru University. She has about 14 years of experience in teaching and research. Prior to this she was working as an Associate Professor at Institute of Information Technology and Management (IITM), New Delhi. As an author she has 12 published articles and as aneditor she has to her credit eight books on the various facets of linguistics. Varalakshmi Chaudhry (Late), PhD, was associate professor at the Linguistic Empowerment Cell, JNU. As a guest faculty at JNU, she taught courses in applied linguistics and psycholinguistics for M.A. and MPhil students. She won several awards: The ELTAI Best English Teacher (College Level) National Award (2013), Chennai; Best Team Player (First Prize) – 2013, Indian Institute of Management Indore; and Best Paper Award (2014), Lingaya’s University, Faridabad. She published two books and 23 research articles in national and international journals. During preparation of this work, Varalakshmi passed away in July 2015 following a road accident.