This document discusses brand equity and various models for measuring brand equity. It defines brand equity as the added value provided to products and services, and views customer-based brand equity from the perspective of consumer perceptions developed over time. Three models for measuring brand equity are described: Young and Rubicam's BrandAsset Valuator model focuses on energized differentiation, relevance, esteem and knowledge; Millward Brown and WPP's BrandZ model involves a process of presence, relevance, performance, advantage and bonding; and the Brand Resonance Model proposes reaching the top of a brand pyramid involving salience, performance, imagery, judgements, feelings and resonance.