We have the purpose of celebrating the unveiling of a special edition of Ar Líquido (Lisbon Lusíada University design magazine) eight years after the inaugural launch occurred as an EXD'05 Tangent project.

Proceeding with an editorial line born in the first number, the 'Original Papers' section, originally created to present translations of texts that were part of Design Theory or History and later open to present Portuguese documents of difficult access, we decided to publish a little opuscule that gathered a small selection of texts associated to the genesis of the discipline of thought in Portugal.

Considering that Portuguese industrial design was a belated phenomenon, it's interesting to understand that, in its theoretic foundations, national thought was in tune with the rest of the world... the problem was to put it into practice...