Nicolae Georgescu-Roegen (1906-1994) is considered today as perhaps the chief founder of the transdisciplinary field today known as Ecological Economics, but that he defined himself as Bioeconomics. In his later years Georgescu-Roegen intended to write a book of this title that would systematize what he considered to be the most significant results of his work. This project intends to resume this project, publishing a collection of the most relevant Georgescu-Roegen essays on Bioeconomics, including previously unpublished papers.