Ok, so I understand volume and tone on a guitar, but I was wondering how EQ works.
How do you filter out highs, lows, and mids individually?
Quote by genghisgandhi
make the bass more bassy

Quote by grohl1987
You really like input jacks, don't you?

My Gear
Epiphone Les Paul Standard Plus Top
Greg Bennett Acoustic
Epiphone G-1275
The short, simple, and easy explanation is this:

A resistor and a cap make a filter. The filter is either low-pass (filters out highs) or high-pass (filters out lows) depending on the order of the cap and resistor.

Using a simple formula, you can determine what value cap and resistor (or pot, if it's adjustable) will filter out what frequencies, and thus tailor a string of them to your liking.