From the RWA site:

t the "Readers for Life" Literacy Autographing, hundreds of romance authors meet with and sign books for fans in this two-hour event, with the proceeds from book sales going to literacy organizations.  

In 2015, Romance Writers of America raised more than $48,000 to benefit literacy programs — bringing our total donations since 1990 to more than $900,000. This year's beneficiaries are ProLiteracy Worldwide, Literacy Partners, and Literacy Assistance Center.

The 2016 Literacy Autographing event will be July 13, 2016, at the San Diego Marriott Marquis & Marina, San Diego, California.  The event will feature over 450 romance authors who will be autographing their latest works.  Authors who are anticipated to participate include Nora Roberts and Sylvia Day.