This is an old podcast about words produced by Radiolab. It features intereviews with Charles Fernyhough who about the relationship of words and spatial relationships, Susan Schaller who studied a man who literally had no words until the age of 27, Ann Senghas and Elizabeth Spelke who watched a language generate among deaf children, James Shapiro on Shakespeare and his gift to English of words like ‘unreal’ and phrases like  ‘what’s done is done’ and ‘knock knock, who’s there’, and Jill Bolte Taylor whose stroke led her into insights about the nature of thinking and language.

Beware, it is an hour long but well worth the listen.