Although the literature suggests that logos impart symbolic meanings via visual elements that influence consumers' early evaluation of brands, few such elements have been studied, with others (e.g., logo thickness) awaiting scholarly investigation.According to the literature, visual thickness seems to influence perception of power and consumers' consequent judgments. This research tests and theorises the influence of the logo visual thickness effect on consumer behaviour. Results of five studies employing more than 4000 MTurk participants and 20 fictitious logos suggest that thick logos boost perception of brand personality mediated by a pronounced perception of brand power. In addition, the logo-thickness-induced perception of brand power is negatively moderated by consumers' level of perceived power of the self.