In this talk we review the change of base theorem for enriched model categories, which states that the change of base of a V-enriched model category along the right adjoint V → W of a monoidal Quillen adjunction (whose left adjoint is strong monoidal) is a W-enriched model category. A novelty of our exposition is that we define an enriched category to be a category with extra structure, rather than as an independent structure from which an underlying category is derived. We draw on higher category theory for examples and counterexamples