The book, entitled "Running Reverse: Down the Evolutionary Trail", belongs to the genre of non-fiction narrative and delves into popular science consumable for all keen masses with a thirst for understanding scientific concepts in a simplified manner. The work canters around my conjectured proposition of the reversal of the evolutionary development of the living organisms in the backdrop of diverse array of ideas to match with distinct set of evidence. This book is an earnest and inclusive endeavour to narrate the journey of biological evolution in general with special attention to the 10 occasions of evolution ofhagfish, aphids, microorganisms, sticklebacks, penguins, snakes, peppered moths, Darwin's Finches when it drove evolution in reverse. And this unique story of occurrence of Reverse evolution in biological world which has primarily triggered by mutations and other factors has ultimately been ended with the tentative evolutionary changes of the human species in Anthropocene on the Earth.