Architecture is conventionally seen as being synonymous with building. In contrast, this book introduces and defines a new category - the unbuildable. The unbuildable involves projects that are not just unbuilt, but cannot be built. This distinct form of architectural project has an important and often surprising role in architectural discourse, working not in opposition to the buildable, but frequently complementing it. Using well-known examples of early Soviet architecture - Tatlin's Tower in particular - Nerma Cridge demonstrates the relevance of the unbuildable, how it relates to current notions of seriality, copying and reproduction, and its implications for contemporary practice and discourse in the computational age. At the same time it offers a fresh view of our preconceptions and expectations of early Soviet architecture and the Constructivist Movement.

Architecture is conventionally seen as being synonymous with building. In contrast, this book introduces and defines a new category - the unbuildable. The unbuildable involves projects that are not just unbuilt, but cannot be built. This distinct form of architectural project has an important and often surprising role in architectural discourse, working not in opposition to the buildable, but frequently complementing it. Using well-known examples of early Soviet architecture - Tatlin's Tower in particular - Nerma Cridge demonstrates the relevance of the unbuildable, how it relates to current notions of seriality, copying and reproduction, and its implications for contemporary practice and discourse in the computational age. At the same time it offers a fresh view of our preconceptions and expectations of early Soviet architecture and the Constructivist Movement.

Sarajevska Azbuka by Nerma Prnjavorac Cridge is the second part of Sarajevo alphabet colouring book, combining the Bosnian cyrillic alphabet and Sarajevo's important buildings. Designed as a colouring book, alphabet and architectural guide all in one, it is intended for older children and adults, for all those learning Bosnian language, and for everyone, like the author herself, who love and miss Sarajevo, regardless of where they live now. Look out for Sarajevska Abeceda and forthcoming London Alphabet, the next colouring book in the City Alphabet Series: Buildings and Letters, by the same author. The proceeds from the sale of both Sarajevska Abeceda and Sarajevska Azbuka will be used to plant trees in the canton of Sarajevo and across the whole of Bosnia and Herzegovina.