You can make paper in Minecraft and use it to craft books, maps, and even fireworks when combined with other material.

To craft bookshelves in Minecraft, the process is simple and requires only two ingredients: First, you need three books. To craft a book, use three pieces of paper and one piece of leather in a 2 x 2 ...

End or Nether — you'll need special items like obsidian or Eyes of Ender.