Surface pattern design is everywhere. In reality we are immersed in a pattern designed world. Every object we buy, own and use has been designed. And so a designer practically created patterns for everything we own, wear and use. Notebooks, pillows, packaging and everything we wear and sometimes we eat! Before there was a product, there was a pattern design for this.
A pattern is a regularity in the world, man-made design, or abstract ideas. As such, the elements of a pattern repeat in a predictable manner.