This is easily the most beautiful knitting book I've seen in a while. With its touches of history and glimpses of Japanese society as well as the patterns, it's good reading, even at moments when you aren't actually knitting.
Perhaps the key to the whole book, and the most important part, is the diagram on page 11, of how a traditional kimono is made, cutting seven pieces from one length of fabric which measures 14 inches wide by 12 feet 6 inches long. If you didn't read any further in the book, you could still make a kimono, just by knitting pieces to the sizes of those rectangles in any yarn and any stitch you wanted, and sewing them together as shown. Even the veriest beginner at knitting can knit rectangles, and that's all you'd need. Of course, for knitters who want more of a challenge, there are the patterns that follow. But that diagram - well, choose a nice yarn with a touch of silk in it for a bit of an "oriental" feel, maybe some rayon to be shiny like the fancier kimono fabrics are - or a blue-and-white variegated or self-striping or ombre cotton yarn, to imitate the fabric used in the most "everyday" kimonos. (Note that the first pattern to knit is for a simple vest in indigo blue and white yarns, with a knitted-in geometric pattern, done using slip stitch. For beginners, though, using blue-and-white variegated yarn in plain stockinette stitch for the top would achieve a passably similar effect more easily.)
On page 16, some of the "crests" that go on kimonos from certain eras are shown; I looked at those and though, circular medallions like that are easy to crochet, so I could crochet circles and add them on to any of the patterns in the book - or onto the plain kimono made just from the first diagram.
Some reviewers have commented that the patterns are more difficult than they expected for modular knitting; while it is true that some are, almost all the patterns can be simplified somewhat for beginners - just get a knitting friend to tell you what can be skipped or substituted. But really, the patterns ARE easier than for sweaters. For example, most of them have no buttons, and therefore no buttonholes to make - surely that makes the patterns more accessible! And most have no short rows, most have no endlessly tedious ribbing at the bottom and neck and sleeves, the way sweaters have.
For those who want something more difficult, one of the patterns, Haori with Crests, uses a smocking stitch. The crests are embroidered on. The Fan Kimono uses a lace pattern - but it is shorter, and the shape is even simpler, than many of the other kimonos. And for those who want an insane challenge, the Kabuki Theater Squares pattern features intarsia checks and a slip-stitch chevron border.
In short, there really IS something in here for every level of knitter, and all of it is beautiful. The pictures are great, and there are several, from several angles, taken for each piece; the diagrams are quite helpful, and the text makes it an interesting book to read, not just a pattern book.