This book includes a collection of recent studies in the field of linguistic planning and linguistic policy, presenting various cases from various parts of the world, through which the variables of linguistic policy become clear, including the conflict of identities and the differences in economic, social, and linguistic visions, and the extent of the importance of language planning, whether in promoting it or reviving it. Or planning its acquisition, or its status.. The book also includes critical readings of books that have not been translated into the Arabic language, in the most important literature published recently in this rich field of sociolinguistics studies. The book tried to present its essence to the reader, as it is like a collection of travels that take us around many continents of the world, and in various circumstances of the relationship of language to society, and the mechanisms of interaction and the active elements in it. It provides a comprehensive summary of the most important ideas and visions covered in these books and a critical review of them.