This publication presents a review of projects built between 2013 and 2016, to which an anatomical dissection of the elements constituting their form has been applied. It offers an integral vision of each work, from its implementation in the territory to the breakdown of its typologies, and continues along the line of inquiry first taken with ‘Why Density?’, developing the concepts on building the dense city expressed therein, this time with new projects. The book is part of the ‘Density’ series, initiated in 2002, which is considered to be a key instrument in the global investigation of collective housing.