International Association of Geodesy, Central Bureau. Copenhagen, July 11, 2007. Announcement to all presenters/authors at IAG Symposia, GS001-005 in Perugia. As ususal Proceedings will be published in the Springer IAG Proceedings Series. The chief editor will be the new IAG President, Professor M.Sideris, University of Calgary. The proceedings will be reviewed, and the review will be handled by the Symposia main Convenors. Therefore you should send your manuscript by e-mail as a pdf-file attachment to the convenors, following the instructions found in http://www.gfy.ku.dk/~iag/proc_instructions07.htm GS001: H.Drewes, e-mail: drewes@dgfi.badw.de GS002: C.Jekeli, e-mail: jekeli.1@osu.edu GS003: V.Dehant, e-mail: veroniq@oma.be GS004: C.Rizos, e-mail: c.rizos@unsw.edu.au GS005: M.Rothacher e-mail: rothacher@gfz-potsdam.de The deadline for submitting the manuscript is September, 1, 2007. The page-limit is 8 pages. An order form for ordering the proceedings at a discount price can be found at http://www.gfy.ku.dk/~iag/orderform.pdf http://www.gfy.ku.dk/~iag/orderform.doc (MS Word) C.C.Tscherning Secretary General