What makes a book rare? How much would you pay for a first edition? Of course, if only a few copies are available, a book's ...

An antique book expert has shared his list of the 20 most valuable titles ... are stunned by how much their old books make. “If you have an extremely old, rare or a book similar to the ones ...

Forbes contributors publish independent expert analyses and insights. Simon is a Los Angeles-based journalist who covers film and TV. An online antique marketplace has revealed a list of the most ...