GIACS is responsible for the edition of assesment documents on Complexity Science. These documents reflect the conclusions of experts meetings. They discuss fundamental questions relating to Complex systems, their application to different fields of research and to business, and future challenges.
Two such documents were delivered in November 2005 and 2006.
The first one was edited by Sorin Solomon:

• HTML version
• Postext version

 
The second document was edited by Gérard Weisbuch:

• Pdf Version

A series of more specific and extended papers was edited by John Casti
in the framework of EXYSTENCE (2002-2005):

• Exystence focus documents

A brochure has been printed covering the main topics of Complexity and giving sketches of the many of the main researchers in the field: A Science of Thirty: Complexity..
It was edited by Sorin Solomon, David Brée, Nurit Intrater, Wendie Shaffer, Victoria Welch and Emanuel Zuckerberger.

It is available from:
Projects, ISI, Villa Gualino, viale Settimio Severo 65, 10133 Torino, Italy.

You can also download a www version from here.
It is 7 MB long.