The collective monograph is devoted to the spatial (geographical) mobility of people in the broad sense of the word. It considers, first of all, regular return migrations within Russia, in which a person does not change his place of permanent residence, but spends a significant part of his time in another place (and on the way to it) for the purpose of work or rest. The study concerns both the whole of Russia and its individual regions: suburban and remote from the capital, northern and southern, western and eastern. It helps to understand how many people really live in different places at different hours of the day, days of the week, seasons of the year.