Been on a binge of books about running recently to help me train.
Started with "Born To Run", by Christopher McDougall which is phenomenal and a must read to anyone, whether you run or not.
Next is "Run!" by ultrarunner Dean Karnazes, which is pretty decent too. He's not as revered by the running community as some of the other runners mentioned in these books so it's nice to get a look at the sport from his viewpoint.
Then "Eat & Run" by another ultrarunner, Scott Jurek, which is a worthy companion book to anyone who reads the first book I've listed.
4th was "Keep on Running" by Phil Hewitt which is sadly the worst book so far. Does very little to actually inspire, just goes on about his personal experiences and the different marathons he's run.
And right now I'm on "Running with the Kenyans" by Adharanand Finn, which is similar to "Born to Run" but is not at the same standard of inspirational writing.