The Cantos by Ezra Pound is a long, incomplete poem in 120 sections, each of which is a canto. Most of it was written between 1915 and 1962, although much of the early work was abandoned and the early cantos, as finally published, date from 1922 onwards. It is a book-length work, widely considered to present formidable difficulties to the reader. Strong claims have been made for it as the most significant work of modernist poetry of the twentieth century. As in Pound's prose writing, the themes of economics, governance and culture are integral to its content.