Pencil Drawing
Extremely easy and "good resulting" tutorial on how to make a perfect sketch from any image.
1. Open your image
2. Desaturate it, Image>Adjustments>Desaturate:
3. Duplicate layer (Layer>Duplicate Layer) and invert colors Image>Adjustments>Invert:
4. Now in layer palette select Color Dodge:
and now yu should have this (don't worry it will be ok):
5. Now go Filter>Blur>Gaussian Blur and set Radius to 9 pixels:
and that's it. You're done! Your final result: