About the author: Anonymous.

Content abstract: The Classic of Mountains and Seas is an ancient book of China, which introduces many mountains, rivers and countries in simple language. Its "age" is a mystery, and so is its author. Its content seems to be clear to later readers, but it has strong comparability and uncertainty.

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2. Walden Lake-by henry david thoreau

Walden Lake Henry

Content abstract: Walden Lake is an excellent book. Serious pollution makes people lose the tranquility of the countryside, so Thoreau's works are read and missed by the whole world. The language is amazing, and the words are flashing, which touches my heart and lungs. In the dead of night, when all is silent, this book is not obscure, clear and bottomless, and people can't help but be fascinated by it.