Step by Step
1. Take your leader in your left had and create a loop about three inches long. Pinch off the loop with the thumb and forefinger of the left hand (1 in the image).
2. Take your braid (or fluoro/mono) main line in your right hand and pass it through the loop from the bottom side. Then, starting away from the loop wrap the braid firmly around the leader a total of ten times back towards the loop. I have used 7 loops and found this knot to be stable but it is longer and flatter using 10 winds (#2 in the image). I find it useful to put your little finger of your right hand through the leader loop to hold the line steady. Note: this is difficult if not impossible using gloves and find myself taking them off to tie this knot.
3. Once you have wrapped the braid around ten times move your thumb and forefinger up towards the loop so you are now pinching off where the braid and leader meet. Then take your braid and wrap that around the main line and the leader so you are cinching both of those lines together while one side of the leader loop remains free. Gives this 5 wraps as seen in #3 & 4 in the image.
4. Moisten your line (in whatever way works for you, we aren't here to judge). At this point I find it easier to pull the tag lines a little tight before pulling the knot tight. This reduces overall waste of your leader and mainline. Once done, pull both lines tight so the knot pulls tight on itself. I also find it useful to grab each of the main lines tight to give it that final tension and this also lets you test the knot.
5. Trim the tags off each end. Note: Like many knots if you leave a little tag of the leader on this can cause tangles with the braid resulting in another unintended knot that can snag going through the eyelets. Trim it tight and this won't be an issue.
Also note: On really light lines when tensioning the knot to pull it tight you can sometimes pull the leader through the braid. To stop this happening I will often throw an extra half hitch at the end of the leader. I don't have a problem above 6 - 8lb line though so for most this won't be a problem.