If you're interested in learning more about time and time travel, here are a couple of amazing books on the subject:

From Eternity to Here: The Quest for the Ultimate Theory of Time (2010), by Sean Carroll (in my opinion, the best book on the physics of time)

A Brief History of the Philosophy of Time (2013), by Adrian Bardon (in my opinion, not only the best book on the philosophy of time, but the best on time ever written for the general public, and I've read quite a few)

EDIT: Fixed link.