We show that the mirror constructions of Greene–Plesser, Berglund–Hübsch, Batyrev, Batyrev–Borisov, Givental and Hori–Vafa can be expressed in terms of what we call dual fans. To do this, we associate to a pair of dual fans a pair of toric Landau–Ginzburg models, and we describe a process by which each of the mirror constructions listed also produces a pair of toric Landau–Ginzburg models. Replacing mirror pairs by toric Landau–Ginzburg models is reversible, and our main result is that the dual fan models and the mirror pairs models coincide.