The book "Philippine Islands, 1493-1898: Volume 48, 1751-1765 Studies of Early Mariners, Descriptions of the Islands and Their Inhabitants, Their History and Records of Catholic Missions Contained in Contemporary Books and Manuscripts Showing..." is an important work , which examines the history of the Philippine Islands from 1751 to 1765 through the lens of research by early European travelers. The author describes in detail the culture, traditions and way of life of the local population, and also studies the influence of Catholic missions on these islands. Because of its original look at the socio-historical context, this book is a must-read for anyone interested in Philippine history.