Web site Graphic-Design.com has a nice tutorial for turning a photograph into a fairly realistic pencil sketch using Photoshop. The process is a bit complicated, but the instructions are detailed, so even a Photoshop novice should really have no problem following along. For a quicker photo-to-sketch conversion, you might want to try out previously-mentioned software Photo to Sketch. Keep in mind,
![Convert a photo to a sketch](https://cdn-ak-scissors.b.st-hatena.com/image/square/788c4683fccf259b1d899753e250d1c05f52eb05/height=288;version=1;width=512/https%3A%2F%2Fi.kinja-img.com%2Fimage%2Fupload%2Fc_fill%2Cf_auto%2Cfl_progressive%2Cg_center%2Ch_200%2Cq_80%2Cw_200%2Fu0939doeuioaqhspkjyc.png)