Interesting book but should really be sub-titled Pattern Cutting for Mensware for the Apparel Industry. This book has all the detail to construct a block (or slopers) but only for one specific size, the industry medium. This is fine if you are constructing garments for the Apparel Industry, but if you are wanting to design blocks for yourself, then this is not the correct book as Kershaw gives no explanation of how he comes up with some of the dimensions he uses, thus adapting the blocks for personal use becomes more of a guessing game than a science, which is unhelpful.