Derived from Koolhaas's much lauded exhibition at the 2014 Venice Architecture Biennale, this book is an essential toolkit to understanding all the elements of structures around the globe, from facades and ceilings to fireplaces and windows. Conceived by Koolhaas and designed by Irma Boom, this guide is long overdue: in the master's own words, 'Never was a book more relevant at a moment where architecture as we knew it is changing beyond recognition."