Sawyer, Charles: - Charles Sawyer is a photographer, writer, and leader of the blues band 2120 South Michigan Avenue. He wrote The Arrival of B.B. King (Doubleday, 1980), the first full-length biography of the great bluesman. Now retired, he was a software professional for high-tech companies and taught both software and blues history courses at Harvard Extension School. He consulted for the B.B. King Museum during its development.