Look at our Earth, also known as Crossing the Horizon, is written by Li Siguang, a famous geologist and founder of geomechanics in China (1889- 197 1). Looking at Our Earth through the Horizon is one of the readers' series of wooden wooden horse brand books, and it is a popular science reading of geology and geography published by Jiangsu Phoenix Literature and Art Publishing House. The author is Li Siguang. This book aims to introduce the geological and geographical knowledge of the earth to readers, and help readers better understand our earth through vivid descriptions and illustrations.