Judy's technique is unique in that she provides templates for the units in the PP pattern that are oversized. This way you can easily line up the odd angles to the paper foundations. So you should have some pattern pieces in the pattern that are having you cut out all your units out of the fabric prior to paper piecing it all together. Then you have all your paper foundation pieces which will form all your blocks. Desert sky is made up of NY Beauty blocks so it is fairly straight forward. Can you be more specific as to what parts of the instructions are confusing you? Also have you ever done any kind of PP before? That in itself can be confusing to someone who has never done it. Once you have the basics of PP down you should be able to understand Judy's pattern.