The book "Engineering in Dependability of Computer Systems and Networks" offers a comprehensive collection of expert contributions discussed during the 14th DepCoS-RELCOMEX conference held in Brunów, Poland, from July 1 to 5, 2019. This conference brought together experts to address various challenges in the reliability of computer systems and networks. The topics covered range from new ideas and research findings to developments in the design, implementation, maintenance, and analysis of complex computer systems. The book is aimed at researchers and practitioners dealing with the challenges of reliability in modern systems. It highlights the interaction between people and technical communication channels, taking into account user needs and behaviors, as well as the challenges that may arise in hostile environments. The diversity of topics reflects the different methods applied in this field, often supported by the latest results in artificial and computational intelligence.