The book "Three Expeditions into the Interior of Eastern Australia, Volume 2: With Descriptions of the Newly Explored Region of Australia Felix and the Current Colony of New South Wales" is the result of detailed scientific research of the Australian continent in the 19th century. The author of the book, T. L. Mitchell, was an outstanding English explorer and geographer who conducted several expeditions into the interior of Eastern Australia. The second volume of the book describes the previously unexplored territories of Felix Australia and the current colony of New South Wales. The reader has the opportunity to learn about the natural conditions, geography, flora and fauna of these regions, as well as the interaction of researchers with local residents. Thanks to the detailed scientific observations and valuable information contained in this book, the reader can better understand the history of Australian exploration and its European development. The book "Three Expeditions to the Interior of Eastern Australia" is an indispensable source of knowledge for anyone interested in the history of discovery and exploration of the country.