First, you need to find a photo that you want to turn into drawing.
- Then go to IMAGE>ADJUSTMENTS>DESATURATE [you image should now be black and white]
- Now you need to make a duplicate of this layer. To do this right click on the layer and select DUPLICATE LAYER.
- Now on the duplicated layer you need to apply Find Edges filter. To do this go to FILTER>STYLIZE>FIND EDGES