The title says it all. What is the effect used in this image and how are there any good tutorials to do it in Photoshop?
First, you will need to download a Photoshop texture that will work for the line pattern. A quick search reveals this: http://www.shapes4free.com/vector-photoshop-patterns/80-simple-line-pixel-patterns/ several of which would work fine for what you need. The file will need to be unzipped once it is downloaded.
It's just called 3D type, as far as I'm aware. It was common in the late 19th century and very early 20th. If you wanted to look up further examples for inspiration, a search for
3D (woodcut|wood) type would be a good starting place*.
Not sure how you'd do it in Pshop. Illustrator has some good tools for this. You could play with the 3D extrude and bevel settings to get you started. For the particular shading pattern here I think it would take a few steps.
This would be my first shot in Illustrator:
* Okay, maybe that search wasn't so good afterall. Google doesn't seem to like old type samples. Thank goodness for BibliOdessey: here's a great post full of 18th Century 3D type.