This book provides an authoritative, inter-disciplinary, and up-to-date survey of relevant concepts, research areas, and applications of intellectual capital. Until now, the literature had lacked a comprehensive analysis of intellectual capital (IC) in regard to sustainability, block chain, and other related technologies and virtual environments. This book shows the importance of intellectual capital for contemporary organizations: how it contributes to theories of the firm, how it affects organizational performance, how is it linked with the organizational ambidexterity, how it connects to the technological developments like block chain and digital technologies, and what would be its association with sustainability. Central to our thesis is the systemic nature of intellectual capital in organizations: how intellectual capital interacts with and complements other organizational resources and developments. This book also shows as to how applying the notion of intellectual capital to organizations requires us to consider how intangible forms of capital differ from more traditional forms, implying the need for a theory of firm that accommodates a concept of dynamic, heterogeneous intellectual capital. Although a lot has been written on IC, this book proves to be the first with scholastic and action-oriented perspective on as to how a firm can manage its IC to create value. This book also demonstrates as to how the subjective aspects of IC can be measured and what can be their strategic implications. A discussion on IC disclosure also appears in the latter part of the book. In doing so, this book reveals as to how the value creation of today’s businesses is driven by the IC. This book also introduces the readers to the new application of IC and its association with the contemporary disruptive technologies. This is a book for IC researchers and academicians who want to understand the diverse aspects of IC, for business managers who want to be at the cutting edge, for those early in their careers who seek a challenging new path, and for the top-level managers of the world who have their eye on the future.