Perks in the Sneak skill tree increase your chances of escaping detection, increase the damage you inflict with sneak attacks, and allow you to avoid setting off traps using pressure plate triggers. As defined here, Stealth is a grouping of (more-or-less loosely) conceptually related skills, of which sneak is one. 'Sneak' and 'Stealth' are sometimes used synonymously, which may cause confusion. It is primarily useful for committing crimes without being witnessed, for evading confrontation with enemies, and for executing surprise attacks that inflict critical damage. The Sneak skill governs your ability to escape detection by others through reducing your visibility and noisiness. For the group of skills to which Sneak belongs, see Stealth.