"Brand familiarity" means how well people know and recognize a particular brand or company. It refers to how familiar individuals are with a brand and how easily they can identify and remember it. Full definition
Analysts at Chitika speculate that B&N's new advertising campaign and launch of the new Nook Simple Touch reader (the one with the glowlight) could have had an indirect impact on Nook sales, and that even though the Simple Touch doesn't support web browsing itself, Nook has benefitted in an increase in brand familiarity via its Simple Touch ads. (techcrunch.com)