The Jewish built heritage in Latvia is a "star system" dispersed in time and space. Its visible and tangible "stars" are the preserved synagogues, which are valuable physical, cultural, and historical assets. Their shining--when properly investigated, conserved, restored, and maintained--reflects the light of the once existent edifices, whose physical loss is irreversible. These lost synagogues are only a virtual legacy of no material use. The book visualizes and interprets the preserved and lost heritage that constituted the environment for Latvia's once-flourishing Jewish religious and social life and was part of Latvia's historical cityscape.