You can use this book to design a house for yourself with your family; you can use it to work with your neighbors to improve your town and neighborhood; you can use it to design an office, or a workshop, or a public building. And you can use it to guide you in the actual process of construction. After a ten-year silence, Christopher Alexander and his colleagues at the Center for Environmental Structure are now publishing a major statement in the form of three books which will, in their words, "lay the basis for an entirely new approach to architecture, building and planning, which will we hope replace existing ideas and practices entirely." The three books are The Timeless Way of Building, The Oregon Experiment, and this book, A Pattern Language. At the core of these books is the idea that people should design for themselves their own houses, streets, and communities. This idea may be radical (it implies a radical transformation of the architectural profession) but it comes simply from the observation that most of the wonderful places of the world were not made by architects but by the people. At the core of the books, too, is the point that in designing their environments people always rely on certain "languages," which, like the languages we speak, allow them to articulate and communicate an infinite variety of designs within a forma system which gives them coherence. This book provides a language of this kind. It will enable a person to make a design for almost any kind of building, or any part of the built environment. "Patterns," the units of this language, are answers to design problems (How high should a window sill be? How many stories should a building have? How much space in a neighborhood should be devoted to grass and trees?). More than 250 of the patterns in this pattern language are given: each consists of a problem statement, a discussion of the problem with an illustration, and a solution. As the authors say in their introduction, many of the patterns are archetypal, so deeply rooted in the nature of things that it seemly likely that they will be a part of human nature, and human action, as much in five hundred years as they are today.

This introductory volume to Alexander's other works, A Pattern of Language and The Oregon Experiment, explains concepts fundamental to his original approaches to the theory and application of architecture.

"These notes are about the process of design: the process of inventing things which display new physical order, organization, form, in response to function." This book, opening with these words, presents an entirely new theory of the process of design. In the first part of the book, Christopher Alexander discusses the process by which a form is adapted to the context of human needs and demands that has called it into being. He shows that such an adaptive process will be successful only if it proceeds piecemeal instead of all at once. It is for this reason that forms from traditional un-self-conscious cultures, molded not by designers but by the slow pattern of changes within tradition, are so beautifully organized and adapted. When the designer, in our own self-conscious culture, is called on to create a form that is adapted to its context he is unsuccessful, because the preconceived categories out of which he builds his picture of the problem do not correspond to the inherent components of the problem, and therefore lead only to the arbitrariness, willfulness, and lack of understanding which plague the design of modern buildings and modern cities. In the second part, Mr. Alexander presents a method by which the designer may bring his full creative imagination into play, and yet avoid the traps of irrelevant preconception. He shows that, whenever a problem is stated, it is possible to ignore existing concepts and to create new concepts, out of the structure of the problem itself, which do correspond correctly to what he calls the subsystems of the adaptive process. By treating each of these subsystems as a separate subproblem, the designer can translate the new concepts into form. The form, because of the process, will be well-adapted to its context, non-arbitrary, and correct. The mathematics underlying this method, based mainly on set theory, is fully developed in a long appendix. Another appendix demonstrates the application of the method to the design of an Indian village.

In Book Oneof this four-volume work, Alexander describes a scientific view of the world in which all space-matter has perceptible degrees of life, and establishes this understanding of living structures as an intellectual basis for a new architecture. He identifies fifteen geometric properties which tend to accompany the presence of life in nature, and also in the buildings and cities we make. These properties are seen over and over in nature and in the cities and streets of the past, but they have almost disappeared in the impersonal developments and buildings of the last hundred years. This book shows that living structures depend on features which make a close connection with the human self, and that only living structure has the capacity to support human well-being.

As an innovative thinker about building and planning, Christopher Alexander has attracted a devoted following. His seminal books--The Timeless Way of Building, A Pattern Language, and The Oregon Experiment--defined a radical and fundamently new process of environmental design. Alexander now gives us the latest book in his series--a book that puts his theories to the test and shows what sort of production system can create the kind of environment he has envisioned. The Production of Houses centers around a group of buildings which Alexander and his associates built in 1976 in northern Mexico. Each house is different and the book explains how each family helped to lay out and construct its own home according to the family's own needs and in the framework of the pattern language. Numerous diagrams and tables as well as a variety of anecdotes make the day-today process clear. The Mexican project, however, is only the starting point for a comprehensive theory of housing production. The Production of Houses describes seven principles which apply to any system of production in any part of the world for housing of any cost in any climate or culture or at any density. In the last part of the book, "The Shift of Paradigm," Alexander describes, in detail, the devastating nature of the revolution in world view which is contained in his proposal for housing construction, and its overall implications for deep-seated cultural change.

Architectural form reconsidered in light of a unitary conception of architecture and the city. In The Possibility of an Absolute Architecture, Pier Vittorio Aureli proposes that a sharpened formal consciousness in architecture is a precondition for political, cultural, and social engagement with the city. Aureli uses the term absolute not in the conventional sense of “pure,” but to denote something that is resolutely itself after being separated from its other. In the pursuit of the possibility of an absolute architecture, the other is the space of the city, its extensive organization, and its government. Politics is agonism through separation and confrontation; the very condition of architectural form is to separate and be separated. Through its act of separation and being separated, architecture reveals at once the essence of the city and the essence of itself as political form: the city as the composition of (separate) parts. Aureli revisits the work of four architects whose projects were advanced through the making of architectural form but whose concern was the city at large: Andrea Palladio, Giovanni Battista Piranesi, Étienne Louis-Boullée, and Oswald Mathias Ungers. The work of these architects, Aureli argues, addressed the transformations of the modern city and its urban implications through the elaboration of specific and strategic architectural forms. Their projects for the city do not take the form of an overall plan but are expressed as an “archipelago” of site-specific interventions.