A collection of printed or electronic materials that delve into the systematic study of the physical and natural world including phenomena, structures, and laws, primarily through observation and experiment. This category also encompasses statistical analysis, which involves collecting, analyzing, interpreting, presenting, and organizing data. It includes urban studies, which examine the development of cities and the effect of urbanization on humans. Lastly, it also covers social sciences, exploring human society and social relationships. These books serve to educate, inform, and stimulate intellectual curiosity in various scientific disciplines.