There are many awesome bondage resources out there! This is a list of some that we particularly like:
Want to get started with actually learning the mechanics of tying someone up? We highly recommend the bondage clips on Kink Academy!
Looking to buy hemp rope? We recommend Twisted Monk!
Other articles:This is a great page that deals specifically with nerve damage in TK (box) tiesRope Bondage for Dungeon Monitors: How to monitor a rope scene when you can't tie yourselfHere is another perspective on general bondage safety