title_body: How do I get my sideloaded books to appear in the Books section?
upvoted_answer: Using the Calibre program, you can clear the [pdoc] tag from the mobi file.
  
  
  
  Remove the tag from this textbox, and convert (back) to .mobi.
  
  
  
  Finish by sideloading the converted files via USB or Dropbox.