Compelling and Inspirational
This is a great book.  A page turner I couldn't put down.  McCullough brings together a number of historical figures from the past 200 years and shows how each of them in their separate fields of study drives toward a common goal.  That goal being the discovery or accomplishment of something that has yet to be discovered or accomplished.  From the Pacific Currents and Central American Plant life, to the Brooklyn Bridge, flea jumping, photography, and strip mining.

This book compelled me to learn all I could about American History and inspired me to read other books by great authors both commonly and uncommonly known.
This helped me through a rough patch in my life and is very inspriational. I'd recommend it for anyone who needs something to help uplift them.