This book underlines the importance of a preventive perspective for healthy and sustainable organisations. The book presents a cross-cultural approach regarding problems and possible resources for strengthening healthy organisations. Primary prevention can be considered as a universal value and for this reason primary preventive interventions have to be taken into account for improving strengths, also if articulated globally on the basis of different contexts and cultures. This volume gives a contribution to the challenge to overcome a dark side towards a positive side in organisations, focusing on healthy people as flourishing and resilient workers. The book includes contributions from different Western and Eastern countries, highlighting the relevance in a cross-cultural perspective of a positive work environment in promoting employee health, well-being, and performance. The book includes two parts. The first part presents contributions that look to go beyond the dark side in organisations in a cross-cultural perspective, individuating new awareness, resources and perspectives. The second part aims to expand the horizons, particularly focusing on a primary prevention perspective with the aim of giving a contribution in concretely building healthy organisations. Thanks to the chapters of the different authors, this book is a relevant and substantive contribution in the framework of a cross-cultural approach to promote a positive preventive psychology for healthy organisations. The volume also stressed the value and the challenge of a primary prevention in a cross-cultural perspective for building healthy work environments. As a whole, this book advances a positive cross-cultural primary preventive perspective to promote healthier and more sustainable workers and organisations in the third millennium, identifying it as a value to share in terms of a valuable point of reference for practice and research.