The bestselling biography of Helen Keller and how, with the commitment and lifelong friendship of Anne Sullivan, she learned to talk, read, and eventually graduate from college with honors.

Why do you get sleepy?When you feel tired, your body is telling you that it needs a rest. Everyone needs sleep. Babies need lots of sleep. Grown-ups need less. But no one can go without sleep for long. A team of scientists stayed awake for as long as they could to see what could happen. Read and find out some wide-eyed facts about the science of shut-eye.