A couple terms that may be useful before you start:
Fiber - The smallest unit of natural or synthetic material used in making fabric. For example, if you took a cotton ball and pulled it apart, all the little strings would be fiber.
Yarn - A collection of fibers twisted together. Yarn is what is woven to make fabric.
If you have any questions pertaining to how fabric is made, or anything else, please leave a comment and we'll get them answered for you.