this was also said by OrbiliusMagister in 2011 (but so far ignored on commons)
https://commons.wikimedia.org/wiki/Category_talk:Italian_Wikisource_books 

regards, 
Anika

2016-03-17 11:49 GMT+01:00 Anika Born <WikiAnika@wikipedia.de>:
Hallo all, 

because of 

I do have a question: 

Isn't [[:c:Category:Wikisource by language]] originally dedicated to Wikisource projects? Is there any Wikisourceproject that is transcribing only one language (no multilingual pages, no multilingual project, no "old-language-texts", only one single modern language)? 

Isn't it better to have one [[c:Category:Books by language]] where all books are categorized by language (not all are at Wikisource) and one parallel [[:Category:Wikisource books]]/[[:Category:Wikisource books by project]] with subcategories like [[:Category:De Wikisource books]], [[:Category:It Wikisource books]]. Categorisation by language can (better) be done at [[c:Category:Books by language]]. 
proposals: 
  1.  move: [[:c:Category:Wikisource (books) by language]] to [[:Category:Wikisource (books) by project]]
  2. move: [[c:Category:German Wikisource books]]/[[:Category:Italian Wikisource books/... (back) to [[:Category:De Wikisource books]]/[[:Category:It Wikisource books]]/...

Are you with me? Did I miss something? 

Regards, 
Anika