Aether Force

Here is a collection of some essential texts about the science of harmonics:

Here is a collections of some essential texts on harmonics I have come across :

And some more supplemental texts of WD Gann and literature he also recommended:

If anyone here is interested into economics, WD Gann brought the science of harmonics to financial predictions. His work in print is extremely expensive and supposedly highly valued as a practical application of the fundamentals of harmonic knowledge: