The book "Demography" is a popular science guide that examines and analyzes various aspects of demographic processes in the modern world. The author approaches the topic from different angles, explaining to readers the basic concepts of demography, such as population, population growth, migration, mortality and other indicators. The book examines in detail the causes and consequences of demographic changes, their impact on the economy, society, politics and other spheres of society. The author provides statistical data, graphs and tables that contribute to a better understanding of the dynamics of demographic processes. "Demography" is an important book for those interested in population dynamics, social problems, migration processes and other aspects of demography. Thanks to the accessible and understandable style of the author, the book is a useful resource both for specialists in the field of demography and for a wide range of readers who are interested in modern trends in population development.