This document discusses various methods for corrosion prevention and protection, as presented in a chapter on corrosion prevention from a university course. It outlines five main methods: 1) changing the metallic material, 2) altering the environment, 3) separating the metal from the environment, 4) changing the electrode potential, and 5) using coatings. Specific techniques are then described under categories of design changes, environmental changes, electrode potential changes, coatings, and cathodic/anodic protection. Key considerations for corrosion prevention at the design stage are also provided.