WALNUT CREEK -- Journalist Laura Ling and nonprofit leader Molly Barker will headline the new 2013 "Making a Difference Speaker Series" at the Lesher Center in Walnut Creek.

Sponsored by the Junior League of Oakland-East Bay, Ling will speak on April 16 followed by Barker on Sept. 24. Tickets start at $100 for both programs.

Ling was held captive in North Korea until President Bill Clinton negotiated her release. Barker founded Girls on the Run in 1996, which promotes preteen girls' self-esteem through running programs.

The shows begins at 7 p.m. at the Lesher Center, 1601 Civic Dr., in Walnut Creek.

Purchase the series at the center's box office, download an order form at www.jloeb.org or call 925-943-SHOW.