You do not need to memorize dozens of knots for camping. A handful of reliable ones covers almost every situation, from pitching a tent in wind to hanging a food bag out of reach.

The bowline creates a fixed loop that will not slip and is easy to untie even after loading. Use it for anchoring a guyline around a rock or stake. The taut-line hitch is the camper’s best friend: it grips under load yet slides when adjusted by hand, making it perfect for tensioning guylines without hardware.
The clove hitch attaches a line quickly to a post or tree and adjusts easily, which suits clotheslines and awning cords. The trucker’s hitch multiplies your pulling force, letting you cinch loads down hard on a roof rack or trailer. Finally, the figure-eight knot, tied at a line’s end, prevents it from slipping through a tensioner or eyelet.
Practice each knot at home until it is automatic, then practice again wearing gloves and in fading light, because that is when you will actually need it. Well-tied knots in quality braided rope retain most of the line’s strength; careless knots can cut it to half. Ten minutes of practice is the cheapest equipment upgrade you will ever make.
Rope choice affects knot performance more than most campers expect. Slick, stiff lines release knots that softer braided rope holds firmly, and thin cord can cut into itself under heavy load. When learning, tie each knot slowly and then test it by loading firmly before trusting it; a knot that capsizes during a test in the yard will capsize in the field too. Mark practice sessions on a calendar until each knot has been tied on ten separate days, which is roughly the point where it becomes automatic. Scouts, climbing instructors, and sailors all follow versions of this simple rule.