The book contains presentation and analysis of the results of the international research project Insecurities in European Cities conducted in the years 2002 – 2005 in Amsterdam, Budapest, Hamburg, Krakow and Vienna. The project has been financed by the 5. Framework Program of the European Commission. Its main subject of interest constituted sources of fear of crime specific for contemporary big cities and growing feelings of insecurities among contemporary urban population. One of the main theses of the project constituted assumption that these phenomena result not necessarily from trends of crime in contemporary societies, and increasing real dagers, but rather from various forms of incivilities characteristic for modern urban life, including various spatial aspects of that life. The book contains chapters on theoretical assumptions regarding fear of crime in contemporary big cities, comparative analysis of crime rates trends in five cities participating in the project, comparative analysis of the quantitative survey conducted in those cities, as well as more detailed analysis of that survey in Krakow.