The First Discoveries of Australia and New Guinea: A Narrative of the Portuguese and Spanish Discoveries in the Region of Australasia Between 1492 and 1606, with Descriptions of Their Old Maps, by George Collingridge is a detailed historical research work that reveals the early history of the discovery of the Australian continent and New Guinea European sailors. The author traces the journeys of the Portuguese and the Spanish in search of new lands and trade routes, examining their discoveries, interactions with local peoples, and the compilation of maps of contemporary research. The book contains interesting details about the expeditions, as well as fascinating descriptions of the old maps that were used to navigate the uncharted world. Anyone interested in sea voyages, the history of discovery and geography will find this book extremely interesting and informative.