List of works published posthumously in the context of "Philip Sidney"

An unfinished creative work is a painting, novel, musical composition, or other creative work, that has not been brought to a completed state. Its creator may have chosen not to finish it, deferred its completion indefinitely, or may have been prevented from doing so by circumstances beyond their control, such as death. Such pieces are often the subject of speculation as to what the finished piece would have been like had the creator completed the work. Sometimes artworks are finished by others and released posthumously. Unfinished works have had profound influences on their genres and have inspired others in their own projects. The term can also refer to ongoing work which could eventually be finished (i.e. the creator is still living) and is distinguishable from "incomplete work", which can be a work that was finished but is no longer in its complete form.

There are many reasons that a work is not completed. Works are usually stopped when their creator dies, although some, aware of their failing health, make sure that they set up the project for completion. If the work involves other people, such as a cast of actors or the subject of a portrait, it may be halted because of their unavailability. Projects that are too grandiose might never have been finished, while others should be feasible but their creator's continual unhappiness with them leads to abandonment.

Das Passagen-Werk or Arcades Project was an unfinished project of German philosopher and cultural critic Walter Benjamin, written between 1927 and his death in 1940. An enormous collection of writings on the city life of Paris in the 19th century, it was especially concerned with Paris's iron-and-glass covered "arcades" (known in French as the passages couverts de Paris).

Benjamin's Project, which many scholars believe might have become one of the great texts of 20th-century cultural criticism, was never completed due to his suicide on the French-Spanish border in 1940. The Arcades Project has been posthumously edited and published in many languages as a collection of unfinished reflections. The work is mainly written in German, yet also contains French-language passages, mainly quotes.