There are quite a few ways to hang a photography backdrop. Let's go over them, shall we?
1. Backdrop Clamps
Backdrop clamps are the most common method of hanging a backdrop to a backdrop stand. Clamps are inexpensive, easy to manage, and can be reused over and over again. Simply clamp the backdrop to the pole (see image below) and remove once complete! Clamps are easy, quick, and damage-free.
Tip: When hanging a large backdrop, start with the middle and clamp outward. Make sure the backdrop between each clamp is flat and straight. The goal is a nice taut, straight backdrop -- no waves or discrepancies in the hanging.
Grommets are great when attaching your backdrop to a wall, fence, or backdrop stand. For example, if you will be using your backdrop as a birthday party dessert table background, simply attach removable wall hooks to your wall and hang the backdrop onto the hooks through the grommet holes. Or, if using a stand, simply attach with ribbon or zip ties through the grommet holes.
3. Pole Pocket
Pole pockets are another great way to hang a photography backdrop. A pro to using a pole pocket is that the backdrop will easily slide right onto the backdrop stand pole without any fuss. A con to using a pole pocket is that you are limited to hanging your backdrop onto a backdrop stand. Another con is the wrinkling along the pole pocket that can occur when rolled up (only when rolled up against the pole pocket -- you can always roll the other direction to prevent this from happening). This usually isn't a big deal since most photographers don't shoot up where the pole pocket region is, however, it's something to think about.
Extra Tip (because we care about your sanity): When taking the backdrop down, start at the bottom of the backdrop and begin to roll upward toward the top. Once you get to the top, either unclamp (if you are using clamps), slide out (if using pole pocket), or unhook (if using grommets). This tip is a life saver!