I've decided I'd really like to write books as a Glitchen. And I've read through the works of others in the forums and feel that I'm probably not the only one who will do this.
Currently, I've only figured out that a book can have up to 16 pages (using a bigger bag renamed with the title) of 1000 characters each page (so 16000 character books). While the character-limit per page isn't an issue, I'd be interested in a new skill and/or item to allow us to bind books that we write. Possibly something that can be learned with penpersonship as a pre-req. There could even be skill levels (paperback vs. hardcover, page limits per level, or even the ability to mass produce if you have enough supplies). A new item (book-binder or something more witty) could be used in conjunction with the skill.
Also, we'd need to find a way to share the books. Currently we could gift the book bag (ha!), or drop it on the ground, but could not sell it (which is really less of an issue) or make sure that more than one person has an opportunity to read it. So book-binding could lead to libraries (including memberships, check outs, a Glitchy decimal system [Tii would love it!], etc) of Glitchen works in world, a new publisher/vendor system to deal with original works and staff-generated works, houses with bookshelves, book clubs, etc.
Just think about it. ;)