Our great poet Odysseas Elytis, Nobel Prize winner in Literature, wrote in 1959 the famous poem "To Axion Esti," his own version of "Genesis." This poem contains the monumental line "This Small, Great World!", with which the poet intended to highlight the grandeur of (any) World.

Kostas Bourtzis, Professor of Molecular Biology, Genetics, and Biochemistry, analyzes the value of microorganisms in life and evolution. He mentions their contribution to nature and emphasizes the scientific research that has been conducted around them, such as the formulation of "Symbiotic Planet" by Lynn Margulis.

The "Gaia Hypothesis" posits that our Planet is a single living, self-regulating physicochemical system, before and after the discovery of microbes. Their role is irreplaceable in maintaining the balance and harmony of nature.

The book "Environmental Microbiology" serves as your introductory step to delve into the magical world of microorganisms, "This Small, Great World!"