Volume # 29 of "IT Revolution in Architecture", "Digital van Berkel" is an invaluable book that scans with an attentive eye the full body of works of UNStudio. The author repeatedly interrogates van Berkel, offering to the reader approachable avenues for learning and understanding. One of the most interesting office today, develops trough its exciting realizations the issue of digital sustainability as the key of a mutable approach, constantly open at a flux of a flexible informations. Andrea Sollazzo (Napoli, 1978), architect, worked in Rome, Paris, and in the Netherlands at "OMA" and "123dv/Lionglie". Specializing in Building Technologies at TU Delft, Sollazzo lives and works in Rotterdam. "IT Revolution in Architecture" is a book series initiated by Birkhäuser in 1999 and now published by Edilstampa, ANCE Rome. Founder and editor since its first publication with Testo&mmagine is Antonino Saggio. http: //www.arc1.Uniroma1.it/Saggio/IT/