The name of a node identifies the node. The pointers enable you to reach other nodes and consist of the names of those nodes.
Normally, a node's `Up' pointer contains the name of the node whose menu mentions that node. The node's `Next' pointer contains the name of the node that follows that node in that menu and its `Previous' pointer contains the name of the node that precedes it in that menu. When a node's `Previous' node is the same as its `Up' node, both node pointers name the same node.
Usually, the first node of a Texinfo file is the `Top' node, and its `Up' and `Previous' pointers point to the `dir' file, which contains the main menu for all of Info.
The `Top' node itself contains the main or master menu for the manual. Also, it is helpful to include a brief description of the manual in the `Top' node. See section The First Node, for information on how to write the first node of a Texinfo file.
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