As well as editing, many people at Wikibooks do cleanup. Any user can do most of these things, not just administrators. Cleanup work is important to keep Wikibooks good. Please, help us make Wikibooks a better project!
Transwiki log - Content that has been moved to Wikibooks from another wiki and needs to be formatted or edited before it is ready for use in an existing book or as a new book.
Requests for deletion - for discussion of books that should possibly be deleted but are not speedy deletion candidates
Lonely pages are not linked to by any other pages. They often contain old vandalism, useless content or their content was copied elsewhere. If they are useful, link them to a bookshelf or other book. Otherwise tag them for deletion.
Short pages - if page is blank and not linked (check "What links here") and was not vandalised (check page history), it can be safely deleted
Queried pages - If it appears that a stub was created in error or want to check with the author to see if it will soon be expanded, use the template {{qr-em}} to tag it; the page will be automatically listed in the speedy deletions after 7 days.
Stubs might be fixed. Old stubs may be removed or submitted to WB:RFD. See Help:Stub.
Upload log - check if new images are not copyright violations, use {{copyvio|URL}}. If you find image without source or license, useTemplate:Tlxs. For invalid fair use claims, use Template:Tlxs. For fair use claims without a rationale, use Template:Tlxs. Make sure you notify uploaders; appropriate code is given on the aforementioned templates.
New pages - check for very short pages, use {{delete}} to mark nonsense, vandalism, and spam for deletion.
Recent changes of anonymous users - first place to look for spam and vandalism. If you find good edits by anonymous users, add {{anon}} or {{joinus}} to their talk pages to encourage them to create accounts here.
Newbies contributions - verify edits by new users, insert {{welcome}} to welcome them (we don't add welcome text to users without any edits).
Unused files Look for duplicates, nonsense and copyright violations