The Mahāniddesa or “Great Exposition” is really one half of a book together with the Cūḷaniddesa, the “Shorter Exposition”. They offer commentaries on certain portions of the Sutta Nipāta, and lack counterparts in the northern canons. The Mahāniddesa comments on the sixteen poems of the fourth chapter, the “Chapter of the Eights” or Aṭṭhakavagga.