There's some great photos in this backpacking vs thru-hiking article, great information too, thanks.
Check this before you decide to go thru-hiking!
Backpacking versus Thru-hiking
Thru hiking vs. back packing
The difference and similarity between thru hikers and backpackers.
Light weight hiking elitist? Enjoy your read.
Great piece laying out the differences between backpacking and thru-hiking as well as offering much needed advice before attempting either!