2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/110876The aim of this Chapter is to provide an account of recent advances in the first-principles modeling of ferroelectric oxide nanostructures. Starting from a microscopic description of ferroelectricity in bulk materials and considering then, successively, different kinds of nanostructures (films, multilayers, wires, and particles), we try to identify the main trends and to provide a coherent picture of the role of finite size effects in ferroelectric oxides.153 pages, 61 figures, 9 tables, 387 referencesMaterials Sciencetext