Presents a brief picture book biography of Mary Walker, a woman born into slavery in 1848, was freed at age fifteen, and would go on to live until 1969, still able to see, talk, and walk at age 121. Almost all this time Mary was illiterate, but in 1963, at the age of 116, she decided to change that--Mary learned to read and write, proving that you are never too old to learn new things.