Public radio fans know a thing or two about language. Especially those who listen to the weekly talk show, "A Way with Words."Co-hosts Martha Barnette and Grant Barrett take calls about slang, dialects and family expressions — celebrating the nuance of words and speech.Now, Barnette is out with a new book about her career, built on a love of linguistics.It's called "Friends with Words: Adventures in Languageland."Barnette will be signing copies at Warwick's in La Jolla on Thursday, Aug. 7. And, she'll be a featured author at the inaugural San Diego Book Festival on Aug. 23.On Midday Edition, we sit down with Barnette to hear all about the book and two decades of hosting "A Way with Words."Guest:Martha Barnette, co-host of "A Way with Words;" author of "Friends with Words: Adventures in Languageland"