This technical book provides operational and simple guidelines to produce data sets at farm/household level to characterize the diversity of family farms. It is structured around three main sections. The first section presents the World Agriculture Watch (WAW) harmonized analytical framework to characterize the diversity of family farms including a subsection linking farm level with landscape and territorial approaches; The second section provides simple and robust guidance to engage into data production at farm/family (household) level. The third section gives orientations on how to use data sets to help define inclusive and targeted investments strategies and programs to strengthen the productive capacities of family farms using data sets to define typologies and information systems to monitor the effects of the investments.