Oh there are more than 3 types and I could fill a page with the types of heels out there but here are the 3 essential types that are enough for one to know because it allows you to pick the style of the heel that works best for you.
Stilettos are the classic sexy pencil heel that represents power, style, and basically a will to take over the world. World domination heels - if you may! Of course, you also get tiny stilettos which are easy to wear and lovingly called kitten heels.
Wedge heels are a very popular type of heel that looks exactly like it sounds - like a wedge is attached to the button of your shoe. They are smart, easy to wear, feet-friendly, stylish, and especially popular in summery styles like espadrilles.
Block heels, of course. Like we said before just a small box stuck at the heel of your shoe - it can be of varying height from 1 inch to 6 or 7 inches sometimes.