This training handbook is a field guide for training urban and peri-urban vegetable farmers in safe practices when using wastewater in vegetable production. It is designed to provide complete information, knowledge and skills for safer and successful production of vegetables in urban and peri-urban farming systems. Once you have gained this knowledge, we urge you to share the knowledge and skills you have gained with other farmers in your neighbourhood, so that they too can produce cleaner and healthy vegetables. The handbook includes two chapters and several exercises to guide you on this regard.