<>The history of the obesity from prehistory to the present. The author with a mild way, simple language and a touch of humor, relates many passages in which he has or seems to have a close relationship with the increase in body weigth. A tour of food, technologies, so called " Thief gene", tastes, the history of certain foods (chocolate, rice, corn, soda), diets, arts, the restaurants; rare or unusual foods; cooking books. The basic idea of the book is, although obesity has always existed, our current way of life( sedentary and nutritionally hypercaloric)has been turning this phenomenon into a true pandemic . It is an educational book about of one of the most serious health problems today, but it goes beyond the scientific.