+It will not be performed on outputs whose root elements are
+ `<书社:archive>`, `<书社:base64-binary>`, or `<书社:raw-text>`
+ (described below).
+
+## Applying Attributes
+
+The `<书社:apply-attributes>` element will apply any attributes on the
+ element to the element(s) it wraps.
+It is especially useful in combination with embeds.
+
+The `<书社:apply-attributes-to-root>` element will apply any attributes
+ on the element to the root node of the final transformation result.
+It is especially useful in combination with output wrapping.
+
+In both cases, attributes from various sources are combined with
+ white·space between them.
+Attribute application takes place after all ordinary transforms have
+ completed.
+
+Both elements ignore attributes in the `xml:` name·space, except for
+ `@xml:lang`, which ignores all but the first definition (including
+ any already present on the root element).
+On H·T·M·L and S·V·G elements, `@lang` has the same behaviour as
+ `@xml:lang`.
+
+## Other Kinds of Output
+
+There are a few special elements in the `书社:` name·space which, if
+ they appear as the toplevel element in a transformation result, cause
+ ⛩️📰 书社 to produce something other than an X·M·L file.
+They are :—
+
+- **`<书社:archive>`:**
+ Each child element with a `@书社:archived-as` attribute will be
+ archived as a separate file in a resulting tarball (this attribute
+ gives the file name).
+ These elements will be processed the same as the root elements of any
+ other file (e·g, they will be wrapped; they can themselves specify
+ non X·M·L output types, ⁊·c).
+ Other child elements will be ignored.
+
+ If the `<书社:archive>` element is given an `@书社:expanded`
+ attribute, rather than producing a tarball ⛩️📰 书社 will output
+ the directory which expanding the tarball would produce.
+ This mechanism can be used to generate multiple files from a single
+ source, provided all of the files are contained with·in the same
+ directory.
+
+- **`<书社:base64-binary>`:**
+ The text nodes in the transformation result will, after removing all
+ Ascii whitespace, be treated as a Base·64 string, which is then
+ decoded.
+
+- **`<书社:raw-text>`:**
+ A plaintext (U·T·F‐8) file will be produced from the text nodes in
+ the transformation result.
+
+## Pagination
+
+It is possible to have a single source file produce multiple output
+ files via `<书社:page>` elements, whose `@name` gives the name of the
+ page.
+If a parsed document has a `@书社:destination` which contains `%s`,
+ the `%s` will be replaced with the `@name` for each `<书社:page>` (and
+ removed for the main output).
+Otherwise, the `@name` is inserted before the first period of the
+ filename (or at the end of the filename for those with no period).
+If `<书社:page>`s do not have a `@name`, they are numbered
+ sequentially.
+The destination of pages must be in the same directory as their parent.
+
+Pagination essentially forms a limited convenience for the more
+ sophisticated technique of creating an archive with ⛩️📰 书社 and
+ then unarchiving it.
+Pages are, from Make’s point of view, untracked side·effects of
+ installing the main output, meaning they cannot be targeted directly
+ and will not appear in `make list` or `make listout`.
+They are intended solely for the like of indices and feeds, for which
+ convenience and necessity outweigh their flaws.