#6534
Silent Spring is a book written by Rachel Carson, first published in 1962. This book is a groundbreaking work that highlights the dangers of pesticides and their impact on the environment. It is considered a classic of environmental literature, and has been credited with launching the modern environmental movement.

#6530
A Sand County Almanac is the representative work (first published in 1949) of the father of ecological ethic, Aldo Leopold. It is considered the "Bible of Ecological Thought", and is called "Natural Literature Trilogy" together with Walden and Silent Spring. The book is accompanied by dozens of original illustrations, vividly presenting the natural feelings of a naturalist. In this book, the author creates a new ethics - land ethic.