© 2019 Elsevier Inc. All rights reserved. The field of metal-organic frameworks or porous coordination polymers has witnessed a remarkable upsurge over the last few years owing to the wide array of applications realized by these materials. In this regard, remediation of environmental pollutants has commanded significant attention owing to pressing concerns globally. This chapter intends to brief the reader of the various aspects involving material development of specific applications along with their considerations while evaluating real-time performance. This chapter also outlines the scope and contents of the book and gives a brief glimpse of the span covered in this book.