W e l c o m e !
You will find how to take an image and convert it into a photoshop brush.
C r e a t i n g P h o t o s h o p B r u s h e s
Step 1 Open up an image or whatever you would like to convert.
Step 2When you download an image pack of brushes, they are black and white. So we have to make them black and white.
Go to Image--->Adjustments--->Desaturate
Step 3You have an image stamp of your brush. Now to turn it into a brush.
Step 4Go to Edit--->Define Brush
Step 5You have just made a brush. Now you can use it all you want ^^
I hope this wasn't hard for you to understand ^^