This book is about the Muslim Javanese in Bangkok who migrated from Java in Indonesia to Thailand after 1862 it the reign of King Rama IV until 1945 which is the year that Indonesia become independent from Holland. This book is divided into 6 chapters: Chapter 1: The causes of Javanese migration to Thailand in the Rattanakosin Period Chapter 2: Javanese Migration to Thailand in Rattanakosin Period Chapter 3: Way of Life of Javanese in Bangkok Chapter 4: The land deals of the Javanese Chapter 5: The way of Life and Culture of Javanese in Bangkok Chapter 6: The Javanese obtaining Thai nationality From the study we can see the political, economic andsocial conditions of the Javanese under the Dutch’s administration. This caused the Javanese to settle down in Thailand. The ethnic Javanese areas in Thailand have existed until now. Most of the Javanese in Thailand were scattered around Bangkok. Then some Javanese did not want to remain in Thailand, so they decide to go back to their mother land. As for the ones who settled down in Thailand and are quite wealthy, they purchased their own land and built mosques for religious practice. Building the mosque indicates Javanese cooperation and their relationship with other nearby Muslims,The researchers also focus on their marriage which is an significant issue for the Javanese and other groups in Thailand. However, some act and policies carried out by the government of Field Marshall Por Piboonsongkram led to the Javanese becoming Thai. (p. 49-50)