This recipe will show you how to list all the image files in a specific directory. In the joke-telling machine, we are creating each joke question and response as a pair of images. This recipe will allow you to list all your bitmap images on the board. We will then extend this functionality to filter the list further and have all the bitmap images of the joke questions at hand. This recipe can be useful in any project that you create where you want to retrieve a list of images to display or audio files or play in your project.