<p><em>Reviewing masterful work by Nirjhar was similar to taking an expansion course in a technical field where my colleagues and I have had a great deal of experience. The exposure to digital transformation is expressed very well in written texts. Also, Nirjhar has demonstrated those concepts with some very clever illustrations as well. It will allow the reader to link the emerging digital ideas with the well-established traditional processes. We found this particularly effective in the discussion of transforming established digital systems to high speed 5G digital systems. In the highly competitive market, digital transformation is not only advantageous but mandatory. Nirjhar has meticulously highlighted the philosophy and architecture of the digital transformation with excellent writing and frequent illustrations.</em></p><p><em>The explanations of the essential changes required have provided us with an excellent guidebook on counselling our clients. Also, it has given us knowledge for improving the design, architecture, and equations we use in our current systems. </em></p><p><em>I enjoyed reading the book. Even though we are changing from current heritage systems to higher speeds, there are infinite growth prospects for digital analysis and communication. This book is a superb prelude to that eventuality</em>.</p><ul><li><b> </b><p> </p> </li><li>Dr. David G. Halloran, Chairman, Halloran Associates, Florida, USA</li></ul><p>In the digital age, digital challenges are growing each day. Nirjhar’ s book brings up relevant topics of today’s fast-changing world. This book will help industries to cope with the new settings and learn to function in Industry 4.0.</p><p>This book is a great starting point and helpful for the readers to understand many of the problems and concepts the business world deals with daily. The book explains digital transformation by using a logical train of thought. Nirjhar has in-depth knowledge and insight that this shows throughout the book. </p><p>Whether you are at a beginners level or an experienced scholar in digital transformation, this book will be helpful for you.</p><ul><li><b> </b><p> </p> </li><li>Alexandra C. M. Katzian, Undergraduate Research Fellow at Kirchliche Pädagogische Hochschule Wien/Krems, Austria</li></ul><p>Nirjhar’s book on Digital Transformation is very resourceful for any company trying to adopt digital transformation as a journey and they can add this book into their inventory for their employees and managers as a reference. This book gives a thorough systematic process and steps what company can prepare them for before entering this transformation journey. Nirjhar has done a phenomenal job by collecting all data points related to the subject. This book reflects his knowledge and research works in the subject. I highly recommend this book to anyone trying to gather knowledge in this subject.</p><ul><li><b> </b><p> </p> </li><li>Anuradha Chattaraj, Senior Director at Verisk Analytics, Jersey City, NJ</li></ul><p>Nirjhar's book on Digital Transformation is a delightful guide, full of important information and illustrations for those of us who want to know about digital transformation processes. With the proliferation of digital and mobile technologies, it is the right time to learn about digital transformation. Strategic understanding of digital transformation is essential for all students and professionals irrespective of their field of work. What is the need for digital tools, how can it be implemented, and what are the essential elements for digital transformation? Nirjhar's book is the answer to all these queries. The most important part of the book is the digital vision and strategy that is mentioned meticulously. Nirjhar has written a must-read guide for anyone who likes to know about digital transformation.</p><ul><li><b> </b><p> </p> </li><li>Dr. Apurba Shee, Associate Professor of Applied Economics, Natural Resources Institute, University of Greenwich, UK</li></ul>