Do you mean the entire process of creating a quilt -- cutting, piecing, layering, quilting -- or just the quilting part? If just the quilting part, hand quilting or machine quilting?
As an added note, I learned quilting many years ago by studying library books since no one I knew quilted. The books are a lot better these days!
Also should mention that there are a lot of very informative videos on Youtube that show different aspects of quilting.