1. WINDSOR knot

1. Take both ends of a tie into your hands, facing yourself. The narrow end on the left side, wide end – on the right. All actions are made with the wide end of a tie.
2. Bring the wide end up through the loop between the collar and your tie;
3. Pull the wide end underneath the narrow end and to the right, back through the loop and to the right again so that the wide end is inside out.
4. Bring the wide end across the front from right to left.
5. Pull the wide end up through the loop again. Bring the wide end down through the knot in front.    
6. Using both hands, tighten the knot carefully and draw it up to the collar.  

2. HALF WINDSOR knot

1. The same as in 1.1.
2. Bring the wide end around and behind the narrow end.
3. Bring the wide end up. Pull the wide end through the loop, around front, over the narrow end from right to left.
4. Again, bring the wide end up and through the loop. Then, the wide end down through the knot in front.
5. Using both hands, tighten the knot carefully and draw it up to the collar.

3. FOUR-IN-HAND knot

1. The same as in 1.1.
2. Turn the wide end back underneath the narrow end.
3. Continue by bringing the wide end back over in front of the narrow end again.
4. Pull the wide end up and through the loop around your neck.
5. Hold the front of the knot loosely with your index finger and bring the wide end down through the front knot.  
6. Remove your finger and tighten the knot carefully to the collar by holding the narrow end and sliding the knot up.