A Life,' spoke on a Jan. 3 episode of NPR’s 'Book of the Day' podcast about Martin Luther King Jr., and noted that MLK didn’t have plans to become a civil rights leader when he joined the Montgomery Bus boycott in 1965.

When we think of Martin Luther King Jr., we often think of the civil rights leader and icon. But beneath this layer, another side of MLK was a brilliant economic thinker with a vision of financial equality for all Americans.