If you’re a programmer and blog writer and like wordpress for your blog then you may need to modify some common functionality of your blog template. I’m not a professional wordpress template creator but sometimes I’ve to work to modify my blogs and some other blogs.
To modify existing wordpress template you have to know some common functions, rules of wordpress blog publishing application. And I found a cheat sheet that is very handy and helpful for this purpose. The cheat sheet is developed by Ekin Ertaç and you may also download the cheat sheet from here.