I actually have the book Knitting Lingerie style. The yarn required is Cascade Fixation a elasticized cotton yarn The pattern is demi-cup underwired bra. It is actually quite pretty. It is too bad that amazon does not have a picture of it up. The pattern is for sizes 32a to 38d. You need to get a bra kit either from joanns or from whiteliesdesigns.com to finish. (the underwire, closures, etc)
Her kit is inexpensive. I believe its 7.00. This bra is on my queue.