The Amateur Naturalists Handbook
I found this book in one flea market. Instantly I got interested in the topic and wanted to learn more about the nature that surrounds us every day. To predict natural phenomena, to understand and categorize animals and plants. This book is a great reading for everyone who wants to start learning more about nature. Love it!
My version is published in 1948, but most of the content is still up to date and interesting. A great start for observers of any age. It invites to explore and gives awareness to be mindful in nature.