This book is an asset to SIA practitioners and students pursuing a discipline in SIA. To them and other stakeholders such as local government officials involved in the SIA Report processing for approval, this book is a must-have since it provides the readers with a comprehensive introduction to social impact assessment in Malaysia. As a sequel to the first publication by MSIA in 2016, readers are exposed to a wide array of topics from background and history of SIA in the country, to important topics that were presented as a discourse in enhancing understanding and knowledge among SIA practitioners, to real multi-disciplinary case studies and finally to exploring a range of other studies that incorporates and apply SIA in their respective disciplines. This book also records the transition in the implementation of SIA legally backed by the Town and Country Planning Act 1976 (Act 172), and this volume is the evidence to reflect the advancement of SIA over time in the country.