What are the most wanted rare books? Yes, yes, we know—this is a wholly subjective question. Certainly, the definition of a rare book extends far beyond its market value, and what may be the most desirable rare book to one person might not be desirable at all to another. Today, however, we want to talk about the most wanted rare books in terms of market value and what kind of hefty price you might expect to pay for certain rare books at auction. As times change, rare book values also change. Accordingly, the “most wanted” rare books today may not be the most desirable rare books in 10 years. In the meantime, though, we want to give you a sense of the vast rare book market and to let you know what kind of competition you could be facing for some of the highest priced rare books that have recently hit the market.