"Ideas on the physiognomy of plants" is an outstanding work of the outstanding German researcher and naturalist Alexander von Humboldt. In this book, the author shares his unique observations and research on the relationship between the shape of plants and their environment. Thanks to an in-depth analysis of information filled with scientific evidence and illustrations, Humboldt derives interesting patterns and opens the reader to new perspectives on the natural world. "Ideas on Physiognomy of Plants" is not only a scientific work, but also a huge contribution to the development of botany and visual art.