Shortcrust pastry is the simplest to make, so let's start our pastry making section of the site with this. We will cover different types of pastry such as flaky, puff and choux on other pages of the site.
My American friends may not have heard this term before, but basically this short crust pastry is similar to your pie crust recipe, lower down the page, apart from a slight difference in the type of fat used and the method of mixing.
This page offers both a basic shortcrust and a rich shortcrust variation.

Sift the flour, with a pinch of salt, into a large, low bowl.
Cut the fat into small cubes and add to the flour. Stir it around with a metal knife until the fat is covered in flour, then put the knife to one side and get your (clean) hands into the bowl! Scoop up some mixture in your hands and then, with your palms up, use your thumbs to rub the fat and flour against your fingers. You are aiming to produce something that looks like breadcrumbs.
Make a dip (or well) in the center of the flour mixture and tip in most of the water. Mix quickly with a knife, then as the dough begins to come together, use your fingers to press it into a ball. Add that remaining water if necessary.
Turn the shortcrust pastry dough out onto your slab or work surface. Then knead it gently until it is smooth. Wrap the pastry in greaseproof paper or pop it into a bag, then leave it in the fridge for 30 minutes to cool before rolling it out.
The recipe above is ideal for savoury pies, flans and quiches, but for a sweet dish you may prefer to use this rich shortcrust pastry recipe.
Sift the flour with a pinch of salt into the mixing bowl. As above, rub in the fat until you get to the breadcrumb stage.
Stir in the sugar. Mix the egg yolk with the water and then tip it into the flour, fat and sugar mixture. Mix into a dough as before.
Again, chill for 30 minutes before using.
If you live in the USA or Canada you are more likely to use all lard or shortening in your pie crust rather than a mixture of fats. In this case use the following recipe.
Place the lard or shortening into a bowl, add a good pinch of salt and the water, and cream the ingredients together.
Sift the flour on top and using a palette knife mix it into the fat to make a dough.
Chill for 30 minutes and then roll out and use as required.