From Control to Design: Parametric/Algorithmic Architecture. Published by ACTAR.
This book is co-writted by a lot of really intresting engineers or architects (cf. the back cover) who are working with parametric design to actually build architecture and not only doing nice pictures...
More over the final discussion between Sanford KWINTER & Jason PAYNE (GNUFORMS)
is really interesting, they are making an analysis of what's happening (and why) in the computational architecture movement/trend.