This depends on what you're going to do, but this site will hopefully help in educating and preparing yourself for what's to come.
It's important to try and determine beforehand what you're comfortable doing and what risks you are prepared to take so that you don't have to make these decisions on the spot.
It's good practice to read about the risks of bondage so you can prepare accordingly.
This is why I'm linking this guide:
Rope bottoming guide (English)
Rope bottoming guide (Dutch)
More information can be found under Rope.