CoinExpo San Jose is a numismatic trade show held at the DoubleTree by Hilton Hotel San Jose that brings together coin dealers, collectors, and hobbyists from the Bay Area and beyond. The expo centers on buying, selling, and appraising coins, paper money, and related collectibles, and typically features dealer bourses, grading services, and expert consultations. Attendees can view rare and historical pieces, learn about collecting and grading from industry professionals, and connect with other collectors and dealers.