The work of Spanish architect Julio Salcedo is showed in this book as a series of built and speculative projects. Salcedo s houses, early achievements that stunned both academic and professional circles with their freshness and precocious sophistication are presented with unpublished competition proposals for large-scale buildings. The projects in their varying locales, scales and ambitions all demonstrate a commitment to architecture as a conceptual medium with a capacity to tackle complex ideas as well as a material practice with a transformative worldliness. Each is a built essay that works through architectural problems of form, construction and material to achieve a thought-provoking resolution in a difficult yet satisfying beauty. The book complements a thorough graphic documentation of selected projects with Salcedo s own writings and critical essays by Luis Rojo and Ivan Rupnik.