"Notes of an honest phenologist" is an exciting popular science work in the form of a diary about natural phenomena in Ukraine. The author travels around the country, observing changes in nature and recording his observations. He shares interesting facts, his own impressions and conclusions about the relationship between nature and people. The book deepens our understanding of natural phenomena and helps us see the beauty of the surrounding world in a new light. "Notes of an honest phenologist" is not only a source of useful information, but also an invitation to discover new facets of interaction with the nature of Ukraine.