Thread:Queenmirelurk/@comment-27075564-20180115011535/@comment-27075564-20180115034820

Basically, books acts like the "all game documents" category and subcategories. If you go one up, into "The Witcher 3 items" you'll see we have a lot of subcategories already, so books holds both the subcategories of notice boards (which goes deeper into notice board postings). However, we have cleared it up so only books are in the book category itself. Notice board postings, for instance, only stay in "notice board postings" subcategory unless they can also come as a book/document as well. So  you might have actually come across those and that's why it got confusing.