Book excerpt: This book presents a typological overview of the case system of Eastern Indo-Aryan (EIA) languages. It utilizes a cognitive framework to analyse and compare the case markers of seven EIA languages: Angika, Asamiya, Bhojpuri, Bangla, Magahi, Maithili and Odia. The book introduces semantic maps, which have hitherto not been used for Indian languages, to plot the scope of different case markers and facilitate cross-linguistic comparison of these languages. It also offers a detailed questionnaire specially designed for fieldwork and data collection which will be extremely useful to researchers involved in the study of case. A unique look into the linguistic traditions of South Asia, the book will be indispensable to academicians, researchers, and students of language studies, linguistics, literature, cognitive science, psychology, language technologies and South Asian studies. It will also be useful for linguists, typologists, grammarians and those interested in the study of Indian languages.