Those who understand the specifics and dynamics of construction projects make better decisions, whether as a client, owner, investor, construction participant, or even as a voter. Those who are unaware or ignore these factors easily fall victim to skyrocketing construction costs, shoddy work, and corruption in the building sector. The dangers and risks associated with construction and the operation of buildings increase with the growing level of technology. Ignorance is becoming increasingly costly. The book "BauWesen" helps to avoid serious problems and excessive costs during the creation and operation of buildings by providing a comprehensive awareness and a clear picture of construction in the 21st century. Construction itself is a very old and well-mastered activity worldwide. The root cause of issues with buildings does not lie at the construction site; it lies in the way construction projects are planned and executed. Construction projects, regardless of their size, show un.