This manual, Volume II of the training manual on the prevention of post-harvest food losses, presents material from a wide variety of disciplines associated with the prevention of food losses and development of marketing operations, particularly those in fruit, vegetables and roots and tubers. It is directed to field staff, project supervisors, teachers at agricultural schools and at training institutions, and extension personnel connected with the handling and marketing of those commodities. This manual should serve as a reference work on the prevention of post-harvest food losses. For specific training purposes, the manual takes up a number of crops and techniques from which the trainer can select according to local conditions. Trainers are encouraged to supplement the material by practical work and by detailed worksheets or handouts covering special topics of local interest.