Origami is a free toolkit for Quartz Composer—created by the Facebook Design team—that makes interactive design prototyping easy and doesn’t require programming. (via Origami – Design prototyping with Quartz Composer )
This tool was born from the daily toil of finding sample avatars for UI mockups (via User Inter Faces )
Expressing UX Concepts Visually :: UXmatters Words and Objects are not Enough Why Visuals are Important A More Visual Approach to Communicating UX Concepts (…) I hope using these ideas will help you to make your UX deliverables more visual—and your concepts more readily understandable to your clients and stakeholders. I believe this greater understanding will help you to get buy-in for your concepts more quickly and easily.