Smartgeometry (SG) has had an enormous influence on the emerging architectural community interested in exploring creative computational methods for the design of buildings. An informal international network of practitioners and researchers, the group meets annually to experiment with new technologies and collaborate to develop digital design techniques. SG was founded in 2001 by London-based architects and friends Hugh Whitehead (Foster + Partners), J Parrish (Aecom) and Lars Hesselgren (PLP). At the time there were little in the way of parametric tools for architecture. SG was founded to encourage development, discussion and experimentation relating to new digital design environments that could be driven by design intent rather than based on construction specifications. The need for new ways of design thinking led to the parallel development of software GenerativeComponents which was tested in the early years of the annual workshops. In response to the needs of designers, the ecology of these design environments has diversified to include multiple software platforms, as well as innovative fabrication techniques and interactive environments. SG calls for a re-consideration of the design process, where the creation of computational mechanisms become an integral part of designing - not a task done prior to or separate from the process. From pencil to algorithm, the tools that architects use directly influence their creative process. New design tools and new design environments therefore mean a requisite re-thinking of what architecture is, and can be. Inside Smartgeometry examines and contextualizes the work of the SG community: the digital spaces, prototypes, and buildings designed using bespoke tools created in response to architectural ideas. From interactive crowd-sourcing tools to responsive agent-based systems to complex digitally fabricated structures, this book explores more than a decade of advances that have influenced both the practice of architecture and the theory that drives it. SG has grown from a handful of experts to an international network of designers who are helping to define design environments of the future. Founded by digital pioneers it creates the algorithmic designers of the future. This book can be seen as a retroactive manifesto for SG, celebrating the varied approaches to computational design explored by forward thinking practitioners and researchers. Through twenty-three original texts including reflections by the founders, and texts by Robert Aish, Martin Bechthold, Rob Woodbury, Chris Williams and Mark Burry, the book offers a critical state of the art of computational design for architecture. SG has been relevant to many international design and engineering offices and the book includes chapters by practitioners from offices such as Foster + Partners, Grimshaw, SOM, Design2Production, CASE, and Populous.