Sensory branding is an important practical tool in modern brand, packaging, and product development. It is also the subject of serious academic study amongst scientists interested in uncovering the reasons why people do the things that they do, largely because brands are potent and omnipresent determinants of human behavior. This chapter proposes that brands are essentially bundles of conceptual associations that have the capacity to trigger a vast array of positively and negatively rewarding emotional outcomes. These, in turn, influence what we do, what we buy, what we eat, and how we behave, more generally. Branding is most commonly implemented through the modalities (or senses) of vision and audition, which means that brands have intrinsic visual and auditory sensory characteristics. The colors and shapes associated with Red Bull and the sounds that confer instant recognition upon the Apple iPhone, are obvious examples. Sensory branding, as conceived initially, takes a multisensory approach by extending the sensory profiles of brands beyond the visual and auditory modalities to embrace touch, smell, and taste. In practice, this means that some brands may have a characteristic feel (silky, smooth fabric textures associated with certain milk chocolates), a distinct fragrance (common across many laundry brands) or a defining taste character (if it isn’t bitter it can’t be Guinness). Sensory branding is feasible because sensory characteristics of all types have associated conceptual meaning (eg, bitterness is associated with masculinity and aggression). Associating a brand with particular sensory characteristics, superimposes the conceptualizations associated with the sensory characteristics onto the conceptual profile of the brand. Assuming consonance across these conceptual elements, these additional sensory characteristics effectively reinforce the brand message. They also provide consumers with additional channels through which they can interact with the brand and marketers with additional channels to communicate brand meaning and to create distinctiveness in the manner in which the brand is presented. It is important to recognize that the other two primary elements of branded goods, the product per se and the form of the packaging within which it is contained (devoid of branding), each has a conceptual profile. These arise, in part, by virtue of their intrinsic sensory characteristics. Adjusting the sensory profiles of product and pack will alter their corresponding conceptual profiles, causing them to become more or less aligned with that of the brand. Greater alignment means that product and pack actually reinforce the brand message (known as brand–product and brand–pack consonance, respectively). Dissonance has the opposite effect. This leads to the point of view that the sensory profiles of product and pack should be optimized primarily to reinforce the brand message rather than maximizing other research metrics such as mean liking ratings in product evaluation or standout in pack testing. It also leads to the idea that products and packs may be designed to have distinct “sensory signatures,” and that these could actually play a principal role in delivering the brand message. Cadbury’s Dairy Milk, Red Bull, Marmite, and Guinness, amongst others, are classics in this regard. In this chapter, emphasis is placed on the science of sensory branding and most particularly in exploring the mechanisms through which sensory characteristics impact on branding. This requires consideration of the fundamental nature of sensory characteristics, of pleasantness, of conceptual association, of emotion, and of reward. The Duality of Reward Hypothesis is introduced as a model for understanding how reward motivates human behavior and how sensory branding may deliver reward via the mechanisms proposed within this hypothesis. Considerable emphasis is placed on brand–product consonance and how this may be investigated using The Matrix brand exploration tool.