Skull « Models « Illustrator Tutorials

1. Illustrate a Grunge Style Talking Skull in Vector - Vectortuts+    vector.tutsplus.com

2. How to Create a Three Color Wolf Skull in Illustrator - Vectortuts+    vector.tutsplus.com

3. Skull Tattoo - Illustrator Tutorial | SlickTutorials    slicktutorials.com

its realy superb tutorial but in the last section of the tutorial i did get the add to shape area in the path finder except this its really superb

4. Skull Tattoo | Adobe Illustrator    webdesign.org

13. Finally, select the two halves of the skull (not the eyes/nose) and in use the "Add to Shape Layer" button in the pathfinder window.