Like most things in design, you can make quite an impact by modifying how people perceive things. In this tutorial, we’re going to create a 3D effect using simple 2D art, demonstrating how effective a little perspective can be. 1 [CREATE NEW RGB DOCUMENT] Choose File> New, select Basic RGB from the New Document Profile pop-up menu, and click OK. Open the Symbols panel (Window> Symbols), then click the flyout menu and choose Open Symbol Library> Grime Vector Pack. 2 [DRAG SYMBOL ONTO ARTBOARD] Next, click-and-drag Grime Vector Pack 09 from the Grime Vector Pack panel onto the artboard. Go up to the Control panel and click the Break Link button. This will turn the art into a regular shape rather than a symbol instance. Open the Swatches panel (Window> Swatches) and choose a bright green color for the shape

Read the original here Create Perspective Using Simple 2D Art with Illustrator CS4