Proper way of listing a horse's bloodlines?
So I regularly see horses bloodlines listed in such as manner as this
(Horse #1 x Horse #2)
(Horse #2 x Horse #3 x Horse #4)
Can someone explain if 1) the positioning means anything and 2) when there are three like the second example, where does the 3rd come from?
I plan to dive deeper into the bloodlines, what produces what, etc over spring and more deeply as soon as a graduate as it intruigues me and I feel it important information for me to know with my personal goals. If anyone knows of good literature or people to speak to I would appreciate that as well!!