On Wikipedia there is the
[[Category:Wikipedia books by "average" rating]]
which sorts the Wikipedia books by average rating according to
[[Wikipedia:Version 1.0 Editorial Team/Assessment]]

I think the ArticleFeedback tool could provide something similar, so that users could get average rating of the pages:

• Belonging to an specific book from a Wikibooks/Wikisource project by either specifying either:
  • A category containing all pages of the group
    • E.g.: [[b:Category:Radiation Oncology]], [[Category:Algebra]]
  • The name of a common prefix for the titles of all pages in the group
    • E.g.: [[b:Special:PrefixIndex/Radiation_Oncology]],

[[s:Special:PrefixIndex/A_Book_of_the_Riviera]]

• A page countaining links to each page of the group
  • E.g.: [[Book:Plutonium]], [[s:Index:Book of the Riviera.djvu]],

[[b:Radiation Oncology]]
(For Wikibooks/Wikisources, these are the current ways used to group the book's pages, until someone fixes bug 15071)

• Some other alternative...

This feature could be useful in situations such as:

• The community of a Wikibooks/Wikisource project wants to chose a featured book and is interested in knowing the average rating of its pages
• The users wants to know the general average of the articles about a specific subject
• Something else...

Version: unspecified
Severity: enhancement
Whiteboard: wikimedia[unmaintained]