Wikibooks:Naming conventions (technical restrictions)

Article titles that cannot be named correctly due to software limitations may be set using the template.

Excluded characters
The following characters are not allowed in page titles:
 * 1) + < > [ ] | { }

The forwared slash, " " is allowed, but not as the first character. Slashes in page titles, delimit sub-pages. Should the page " " exist, then the page " " will be a sub-page of " " with the title " ".

Lowercase first letter
The first character of book titles is forced to lower case. Sub-pages may begin with either case. This may be fixed in the future.

Namespaces
A book name cannot coincide with a namespace (such as "Wikibooks:", or "Help:").