Ill Try to improve itand get better if im gonna make more guides

Not enought info on your build itself(items). I would like more options or way we should stick to thoes 2 path.

Pls more images or at the very least colors

Hi m8, I came to check you're guide out :)
I like the runes mysteries and the build.
For a first guide this is pretty good, but obviously there are many improvements that can be made:
First, you could try to make your guide a bit more in-depth. People want to understand why they should use this build/masteries/etc, so its better if you farther explain you're choices. You could also add a section on how you generally play him in the lane, temafights maybe etc.

You're guide is also missing icons. They are really easy to use, and they make walls of texts much better and much easier to read. simple icons that you use while you write to make the text more interesting, is simply done by whatever icon u want to show. for example Corki, if you write "corki" instead of "whatever icon u want to show"
Larger icons that are used to show items that u buy or such, are done like this: whatever icon u wanna show. The higher the number the larger the icon is. for example .

Anyway, I like your guide and build, so u get a +1 :) Hope I could help, gl with your guide :)

I don't think this a good build for many reasons (Not build making but the actual build)
Why do you max Q when at level 5 it has 10 more mana cost than gatling gun and scaled off AP? I'd say max your E first, taking a point in Q at level 1 for ganks. Another flaw is why blood thirster/manamune ? When you can build a trinity force that has EVERYTHING Corki needs: Mov. Speed boost, AD, Mana, Sheen's passive, and a slow.
-1 for now, hope you can improve it.

before i start voting please look at the sig and click it :/

See, as a guide this is great, but as a build, i dont find this to be strong. The point of an early manamune is that you can suppliment it quickly to get more damage via another mana item, like a catalyst or sheen. Saving your catalyst til endgame means your manamune is only feeding mana off itself until the end, which is very inefficient gold wise. i mean, you can address my comment in getting a different vote but for now im at a -1

Taking into account that is your first guide, is not so bad compared to others. I like the way you explain. +1 for u

Needs icons on items and such. Looks sooo much better with those. Also would be very helpful if you threw in things like optional items against certain team comps, optional summoners, and other things like that. Not bad but could definitely use some improvement.