Napa Valley Vintners (NVV), the non-profit, professional trade organization representing 270 Napa Valley wineries and responsible for the promotion and protection of the Napa Valley Appellation, announces that the 26th annual Auction Napa Valley (ANV) will be held June 1 through 4. Napa Valley Vinters has raised and distributed more than $60 million in its 25-year history for social service and health care organizations.