Which dictionary brand's 1990s "Verbal Advantage" TV infomercial campaign revolutionized reference book marketing by positioning dictionaries as tools for social and professional advancement?

In the world of language and linguistics, dictionary brands typically maintained a serious, academic image. However, one major dictionary publisher broke this mold with a revolutionary marketing campaign that transformed how reference materials were promoted to the public. This campaign not only boosted sales but entered popular culture and changed how dictionaries were perceived by younger generations. Test your knowledge about this linguistic marketing milestone!

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Merriam-Webster with their "Words Give You Power" campaign
Oxford University Press with their "Speak with Authority" series
The American Heritage Dictionary with their "Success Speaks Clearly" ads
Wordsmith Publications with their "Don't you hate it when you're embarrassed by mispronouncing a word?" testimonials