2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/116023In this review, we hope to give the reader a self-contained contemporary presentation of the application of Landau theory to ferroelectrics. We begin by developing Landau theory for homogenous bulk ferroelectrics and then consider the finite-size (thin film) case within the related Landau-Ginzburg approach. Next we discuss the treatment of inhomogeneity within this framework. We end with a number of open questions for future pursuits.47 pages, 8 figures, 1 tableMaterials Sciencetext