This intense period, during which the artist also published a sizeable sylloge of writings (Ich will Sofort ein Buch machen / Voglio fare subito
un libro, Sauerländer, Aarau - Frankfurt and Hopefulmonster, Florence), was followed by a phase characterised by a return to the essential nature of matter and line (one - man show at the Fundaçâo de Serralves, Porto, 1999).