How To Skew A Dot Pattern with Adobe Illustrator

Here we have a great video tutorial for Adobe Illustrator explaining how to use the Free Transform, Shear, Skew and Reflect tools to create vector logo types and icons in perspective

Important shortcuts to remember:
*Mac OS
Cmd + Opt + Shift + Drag with the Free Transform Tool = Shear
Cmd + Shif + Drag with Free Transform Tool = Skew

*Windows
Ctrl + Alt + Shift + Drag with the Free Transform Tool = Shear
Ctrl + Shif + Drag with Free Transform Tool = Skew

More about using the "Free Transform Tool" here.