Over on A list Apart, Mike Rohde has written a great article on the use of sketching as a visual thinking tool.
I always say that when you design on a computer lots of interesting things happen and the design process can develop along unanticipated and exiting ways, but when you work in a sketch book the pace and process produces different work again and one can supplement the other. It is not an either or situation but combining both processes that can really enhance skills.
Mike Rohde makes similar points
“Adding sketching to the design process is a great way to amplify software and hardware tools. Sketching provides a unique space that can help you think differently, generate a variety of ideas quickly, explore alternatives with less risk, and encourage constructive discussions with colleagues and clients.”
If you are at all interested in design and of course textile design falls into that category pop over and read Sketching: the Visual Thinking Power Tool