Book excerpt: A system plan is the design of a total reserve system covering the full range of ecosystems and communities found in a particular country, identifying the range of purposes of protected areas and the relationships among the system components (i.e., individual areas, protected areas and other land uses), and different sectors and levels of society. Highlighting key linkages with other aspects of economic development, it shows how various stakeholders can interact and cooperate to support effective and sustainable management of protected areas, and help to establish priorities. A valuable resource for all those involved with national system planning.