The C.E.I.P.P., or the Centre (formerly Cercle) d'Etudes sur l'île de Pâques et la Polynésie ("Study Centre (formerly "Circle") on Easter Island and Polynesia") is a geographic and anthropological group created by André Valenta and Michel-Alain Jumeau.

The CEIPP is notable for its members' publications on Easter Island

Easter Island

Easter Island is a Polynesian island in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian triangle. A special territory of Chile that was annexed in 1888, Easter Island is famous for its 887 extant monumental statues, called moai, created by the early Rapanui people...

, which include:

• Nouveau Regard sur l'île de Pâques, a collective work published by Moana Editions, Saintry-sur-Seine, 1982.
• Les Mystères Résolus de l'île de Pâques, a collective work published by Editions Step, Evry, 1993. ISBN 2-9508078-0-1.
• Michel-Alain Jumeau and Yves Pioger's Bibliographie de l'île de Pâques. Publications de la Société des Océanistes, nº46, Musée de l'Homme, Paris, 1997. ISBN 2-85430-004-1.

It also houses the Thomas Barthel

Thomas Barthel

Thomas Sylvester Barthel was a German ethnologist and epigrapher who is best known for cataloguing the undeciphered rongorongo script of Easter Island....

 archives of rongorongo

Rongorongo

Rongorongo is a system of glyphs discovered in the 19th century on Easter Island that appears to be writing or proto-writing. It cannot be read despite numerous attempts at decipherment. Although some calendrical and what might prove to be genealogical information has been identified, not even...

, making the data available in digitized format, cross-checking his line drawings of the rongorongo corpus with available photographs and the rubbings he used, and expanding his list of glyphs and his glyph-referencing system.