Warren Buffett's former deputy, who quit Berkshire Hathaway to build her own conglomerate last year, just published her first annual letter. Tracy Britt Cool was hired as Buffett's financial ...

[Image: NBC News] By the 1990s, single-letter monograms had dropped to 2% of new logos, but they have bounced back, accounting for a little more than 3% of this decade’s logos, perhaps due to ...