The E3P final seminar held in NIAH, Hanoi, Vietnam and introduced the main results through the edited book ""Pig production Development, Animal-Waste Management and Environment Protection" as the main output of the E3P project. This book (paper and CD-Rom version) explores the outstanding issues in agricultural development and its environmental externalities in one province of Northern Vietnam. Its coverage of agricultural issues ranges from the details of on-farm management practices issues to the balances of nutrients at regional level and the perception of the society to suggest alternative strategies.