Long bookends

Long bookends may refer to one of the five still lifes comprised of two long bookends:

• 
  Cis-mirrored long bookend
• 
  Trans-mirrored long bookend
• 
  Shift-mirrored long bookend
• 
  Cis-rotated long bookend
• 
  Trans-rotated long bookend

Unlike the normal bookend, a diagonal bridge between two long bookends does not result in a stable object in itself.