Periods of social unrest can be difficult to understand and especially to live through; still, they make up the fabric of our nation.  For generations, protest and social activism have taken on many shapes and forms and have helped to create the world we live in today.   This book list, which includes books for even the very young  (found toward the top of the list and proceeding in order toward books for teens) highlights some of the people and events, both well-known and obscure, that have brought about change in the world.