The big picture : the context for a handbook on public health nutrition practice -- Defining public health nutrition as a field of practice -- A framework for public health nutrition practice -- Step 1 : community engagement and analysis -- Step 2 : problem analysis -- Step 3 : stakeholder analysis and engagement -- Step 4 : determinant analysis -- Step 5 : capacity analysis -- Step 6 : mandates for public health nutrition action -- : step 7 : intervention research and strategy options -- Step 8 : risk assessment and strategy prioritisation -- Step 9 : writing action statements -- Step 10 : logic modelling -- Step 11: implementation and evaluation planning -- Step 12 : managing implementation -- Step 13 : process evaluation -- Step 14 : impact and outcome evaluation -- Step 15 : evaluating capacity gains -- Step 16 : economic evaluation -- Step 18 : reflective practice and valorisation.