Drawing 3d Cubes

I'm fairly new to C# but I have a basic understanding of it, and I downloaded some source code the other day that drew a 3d cube into a picturebox. I thought it was pretty interesting, so I wanted to know how I could code it myself. So where yo begin.
I was wondering if anyone could direct me on where to start with 3d/2d drawing with C#, or explain how it works. I found a good tutorial on how to make a 3d textured cube in C# a while back on youtube, but I can't find it again. I was wondering if anyone would be willing to tell me the basics of it. Thanks for anyone that helps, I'm not asking for much, and if you feel that I am I'll forgive you if you don't reply.

Would you forgive me if I did post, but it wasn't useful?

First off, one would need a grip on 3D/vertex math(s). Secondly, the System.Drawing.Graphics class provides simple drawing methods like DrawLine. Once you've calculated the 8 vertices, Bob's your uncle! Introducing textures, that creeps up to 24 vertices: 4 per face, subtracting for faces that won't be rendered.

As to your tutorial: pick one :)

Actually, axion, although I already knew a bit about the creation of the shapes, your post was fairly helpful :thumb: