Learn how to design a letterhead from rough sketch through to setting your document up ready to go to print.
How to Design an Awesome Letterhead in Adobe Illustrator
by Daniel Evans
Design Visualization using Fusion 360 and Sketchbook
by Autodesk Education
Watch the Online Video Course Learning to use MakerBot 3D Printers
Sketch 3: Design a mobile application from scratch
by Adria Jimenez