Managers are key people in building the success of any organization. Business results depend on their efficiency in the implementation of the power entrusted to them. This efficiency, on the other hand, largely depends on psychosocial competences and personality predispositions. One of the main factors affecting destructively on managers is stress, destroying the level of their motivation to work, the level of commitment and ultimately resulting in premature professional burnout and a significant reduction in the level of efficiency. Ultimately, instead of efficient and motivated specialists, companies are struggling with employees suffering from depression. Exploration of the issue of identifying the sources of stress draws attention to conflict as one of the main research categories that are closely related to the category of stress. It is worth emphasizing that this relationship is two-way: conflict determines the level of stress, stress may determine the scale of conflict situations. This recommended monograph provides the latest knowledge on what contemporary managers use conflict resolution styles and what strategies they choose to deal with in stressful situations. A particular advantage of the study is the presentation of the links between both research categories, which are so paramount nowadays.The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license. Any third party material in this book is not included in the OA Creative Commons license, unless indicated otherwise in a credit line to the material. Please direct any permissions enquiries to the original rightsholder.