Five training manuals on "Simple Methods for Aquaculture" and the "Handbook on Small-scale Freshwater Fish Farming" are presented on the CD-ROM. These manuals are written in simple language, focusing on the practical aspects of semi-intensive fish culture in freshwaters from site selection and fish farm construction to the raising, final harvesting and marketing of the fish. They present methods and equipment useful not only to those responsible for fields projects and aquaculture extension in developing countries, but also for use in aquaculture training. The first version of this CD-ROM was released in 2003 in English and French. This second release has been revised, improved and includes also all manual in Spanish.