A treatise is a formal, lengthy, systematic discourse on some subject.

Noteworthy treatises

• Treatises have been written by various philosophers:
  • Aristotle—various treatises
  • Xenophon—Oeconomicus
  • Ch??akya—Arthashastra
  • Claudius Ptolemaeus—Almagest
  • John Locke—Two Treatises of Government
  • David Hume—A Treatise of Human Nature
  • René Descartes—Treatise on the World and Compendium Musicae
  • William Godwin—one of the first anarchist treatises
  • Karl Marx—Das Kapital
  • Niccolò Machiavelli—The Prince, and Discourses on Livy
  • Hector Berlioz—Treatise on Instrumentation (sometimes, Treatise on Orchestration)
  • Charles Darwin—The Origin of Species
  • Nizam al-Mulk—Siyasatnama (The Book of Government)

• Other well-known treatises include:
  • Sun Tzu—The Art of War
  • Thomas Paine—Rights of Man, Common Sense, and The Age of Reason
  • Geoffery Chaucer—The Parson's Tale
  • Euclid—Elements

• Recent treatises in the natural sciences include:
  • Treatise on Invertebrate Paleontology, Volumes A through W, edited by Raymond C. Moore, Roger L. Kaesler, and others (1953 to 2006, and continuing). Lawrence, Kansas: University of KansasPress; and Boulder, Colorado: Geological Society of America. -- Two recent volumes are, for example, ISBN 0813731356 (Brachiopoda, Revised, Volume 5, published 2006) and ISBN 0813731313 (Porifera, Revised, Volume 3, published 2004).
  • Treatise on Marine Ecology and Paleoecology, Volume 1: Ecology and Volume 2: Paleoecology edited respectively by Joel W. Hedgpeth and Harry S. Ladd (1957/1971). Washington, D.C. : WaverlyPress; and Boulder, Colorado: Geological Society of America.

• Recent economics treatises have also been written:
  • Paul Samuelson—Foundations of Economic Analysis
  • Milton Friedman—Capitalism and Freedom

• Treatises on architecture:
  • De architectura, Vitruvius (ca. 40 CE)
  • De re aedificatoria, Leon Battista Alberti (1450)
  • I Quattro Libri dell?Architettura, Andrea Palladio (1570)

• EU Energy and transportation:
  • Treatise project provides free training in environmental transport for energy, environmental and fleet professionals http://www.treatise.eu.com/.

See also

• Legal treatise

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