As a lifelong knitter, I can tell anyone reading this, that your end product will really ONLY be as good as your finishing techniques. Minor pattern goofs can be overlooked, sizing can be adjusted with blocking, but bad finishing will just make your finished garment or project look sub-par.
Deborah Newton, the author, is a noted knit designer, and she is particularly known for tailoring, garment structure, texture and well, yes, a goodly number of her designs require the dreaded sewing-up. But she reveals a lot of her techniques and tricks here, and if you employ them, you will be so much happier with your hard work put into a wonderful knitted project. Her long experience as a designer and costume-maker make this book chock-full of valuable hints, tips and advice.
Here are some of the examples of what Newton teaches us in this book:
Blocking: how to flatten, stretch, shape and otherwise tame a lump of knitting into the proper shape. Blocking is in my book, numero uno of a must-learn. I do a lot of lace and lace is not LACE until you block it. And if you knit cardigans or jackets flat-style (pieces like a sewn garment) you MUST BLOCK. And it will let you fit that garment to a nicety.
Seaming: Mattress stitch, other methods to get the flat pieces joined. This is one of the most frustrating parts of constructing a cardigan, for example, from flat pieces. If you seam correctly, it will look and fit well. If you don't, it will look like a bad school project.
Edgings: these are finishing techniques knitted on and in some cases crocheted on or even sewn on and they make your garment looked finished at hem, cuff, placket and other areas.
Closures: such things as zippers, buttons, frogs, other ideas to close or fasten a garment.
The chapters have sections that go into the trouble spots for each type of technique and give you a how-to on fixing those issues, as well as a list of cheats to quickly refer to when doing a finishing technique (I'd like to see those pulled out into a book of laminated cards that are held by a spiral spine to flip through--hint hint, Deborah!)
Some people hate finishing so much, they hand it off to a pro to take care of. When I did production knitting for a designer in St. Louis years ago, the finishing was what that designer was most concerned about; if you didn't get your seams right or the loose ends properly fastened and hidden on the back of the garment, she'd throw it right back to you and reject it.
This book will really help you to love, well if not love, at least get good at finishing. And that will be the difference between a successful knitted project and prevent those FROGS (rip-it, rip-it, rip-it out and do over) and worse yet, TOADs (Trashed Object Abandoned in Disgust ...)