Invisible Influence by Jonah Berger explains the psychology that motivates the decisions about branding and identity. The decisions made by an individual on a daily basis are dictated by subconscious factors so one is hardly aware of its effects. An individual can detect the influence by a suggestion from other people and not be able to recognize the level of impact the same factors had in their decision.

Familiarity largely affects choices. People are biased to the things they often see, even if they do not recall seeing them. They are likely to follow a group's decision on a preferred product or brand, which leads to increase in popularity of already popular brands. Individuals can, however, shy from going against a group of people that made a wrong choice.

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