That's an extensive subject, and one can either go with the "go with 50% - the golden middle", or break it down to all retracements, whether circular or linear etc...And by doing that, you will definitely want to learn Elliot + Gann studies for that matter... In my daily candles perspective, I found it too extensive to learn, but if you have the time and will - go for it - if you want to do it in an extensive manner, I suggest you start with Bonacci directly, since his studies are actually a mathematical continuation of the Aristotle's "golden middle's"...
Yeah, I read a little about Fibs way back in the day but it didn't seem to be worth it too much when it comes to opening trades but now getting back into things, its probably the right way to go for taking profits. So, if I want to be on a beach in Tahiti sipping on margaritas, I'm thinking it would be a good idea to learn fibs. At least learn a little more than just the basics. I understand how they work but I'd like to learn more about the right placement on charts.
Da song ..... https://youtu.be/LgFJJ77w2nA
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