Books in my library

My new maid is good at cleaning.  She can spend hours cleaning up a specific area.  She cleaned my library a couple days ago.  My wife think she is good because she always give feedback that the area is very dirty and the previous maid did not clean, blah, blah, blah.  However, I am not sure about her standard of cleanliness.  She mixed up my books in the book shelves and they are no longer in order.  Books are my most previous things.  Now the books are no longer organised by author or by the same size.  They looked messy and it is hard to locate specific books as they are no longer in a logical order.  Sigh!  It is time for me to repack my library.