Vampire Knits: Projects to Keep You Knitting from Twilight to Dawn”, is listed at around $12, but you can get it from your library, used on Amazon for as little as $2.15 plus shipping, or on half.ebay.com for a few dollars.
You can also check out comments about the project on Ravelry if you signup for free here. The knit corset is described as:
The corset is knit side-to-side of two strands of Louet MerLin Sport, a linen/merino blend that produces a strong fabric with a soft hand and fluid drape. It is knit at a tight tension for a fairly firm fabric, and then further enforced with twill-covered boning sewn inside for support. … Wear it on its own as an undergarment, or over a filmy cotton camisole or silky satin slip dress or tailored skirt and blouse as outerwear.
28 Projects and don’t let the Twilight reference keep you from looking at these projects!”