A pattern in Photoshop is essentially an image that can be tiled repeatedly. The use of patterns can speed up your workflow by cutting out the need to create intricate objects that can otherwise be constructed using a repeatable image template. Not only will they save you time, but they can marry intriguing design elements to your work.
Patterns abound in both nature and architecture, and therefore it's important that you know how to create— and occasionally recreate — patterns as replacement areas for images, for background on Web pages, and even for Fine Art. Digital media has redefined the term "pattern" to include natural textures, exotic surfaces, basically any object that has a fill can look more handsome and lifelike with a little mottling and detail work; in essence, a pattern. Read on to learn the procedures in Photoshop for creating patterns that are both realistic and fanciful, with obvious repeats of geometry and carefully disguised repeating tiles.
This is especially helpful and can save you a lot of time if your document uses repeating elements. While Photoshop includes plenty of patterns, there will be times when you need to create a custom pattern to fit your design. Creating and using custom patterns is an essential PS skill.