A bit longer Photoshop tutorial, but still very suitable for beginners, where you will learn how to carve a random text into human skin from scratch and make it look realistic.
If you were ever wondering how the heck do they create those continuous patterns, then wonder no more and check this neat Photoshop tutorial that might teach you a new designing trick or two.
Google Chrome has a handy function where you can just paste an url or search term and you will go straight to the page or get the Google search results.