In reply to Creating and Selling a Revival Font, Ethically and Legally:
CPR for Dummies comes to mind.
But seriously, I think a lot of groundbreaking revivals of families, Garamond, e.g. have launched individual styles into huge and useful classes of fonts, and the designers (and their dogs), who did those revivals, are some of the most notable names of the past two centuries.
Defending those living and dead heroes seems worth mentioning, that's all.