This manual presents methods, procedure and tools about how to establish and operate a marketing information system (MIS) for natural non-timber forest products. The manual aims to provide guidance to facilitators and development program managers in developing an MIS for natural products and successfully managing the MIS for equitable and transparent value chain governance of these products. The manual is mainly targeted for field facilitators and programme managers of development organizations who wish to develop MIS of natural products in a systematic way. The manual is also useful to community groups, researchers and students and others interested in natural product value chains. The manual is subdivided into four stages: Stage 1: Get prepared; Stage 2: Carry out detailed assessment; Stage 3: Design the marketing information system through a workshop; Stage 4: Implement the marketing information system. The manual has and can be successfully been used in training progammes and courses.