This book has an excellent support forum for helping its readers through some of the technical quibbles one will find frequently scattered through this book. On almost every pattern, there will be errata so the naive reader should look at the Artyarns website for corrections or join the helpful multidirectional forum accessible through the Yahoo groups section for help.
Quite honestly, it mystifies me why this book receives the amount of 5-star praise that it does. It has lots of pattern errata (I don't know if this was from poor editing or simply a rush to get it into print - one star off for me). The garment patterns are somewhat so-so from a fashion standpoint (The bullseye cap - while excellently showcasing a certain technique - isn't really all that attractive - perhaps the choice of black and white contrast yarn in the photo is too strong. A more subtle gradation of color may have worked? I think my inital problem with the patterns of this book may be due to the heavy reliance on variegated and novelty yarn in this book. In my wardrobe, I prefer more solid colors, or subtle color shifts or muted patterns that are not so 'busy.' (Another star off from me.)
I think where this book really shines is in the 'knitting for the home' and accessories department as well as the 'design' department. There are some nice scarf and shawl patterns in this book that are likely to appeal to someone and the pillow patterns are fun, decorative and amenable to the Multidrectional technique. Speaking of Modular knitting, I like how this book encourages you to practice the techniques on little swatches. Your collection of little swatches can open a whole host of inspiration to designing your own patterns.
Do I consider this a requirement in a Knitter's library? Well, I think it depends on what you prefer. I like knitting clothes more than I like knitting accessories so for me, this book is somewhat in the category of: 'it would be nice as a gift, but I don't really need it.' I think if one was looking for a way to knit multidirectional without needing to join yarns and loved working with variegated and novelty yarn, this would be a good book. If one was looking for some nice home patterns or accessories patterns, this would be a nice book.
Now a rant - beware!: It really irks me that knitting books, in general, feel no obligation to edit their books properly on first printing (people are right that it's not fair to single out Modular Knits alone - LOTS of knitting books participate in this manner - unfortunately. If readers are going to the trouble of buying a technical book, we rely on those books to be technically correct. English teachers don't like to see bad grammar in books or essays. Scientists who publish books want to be as accurate and precise as possible before they publish their hypotheses and theories. Why should crafting books be any different? Too much errata in books just speaks volumes about lazy editing and writing, in my opinion. I plead with knitting writers to spend a little more time on good technical editing!
My feelings on this book are sort of like/dislike. There is enough errata scattered in this book to be downright annoying. However, this book is great for the knitter who also wants to design his/her own patterns. There are lots of techniques to try here to get the creative wheels turning. The patterns are fun to work with while practicing these new techniques, although the garment patterns are not that appealing to me. The patterns highlight variegated yarns in interesting ways: from geometric shapes to angles to mitered squares. I strongly recommend the reader to first check it out at your local library or go to your local bookstore and BROWSE it first. If you like the patterns in it, great! Unfortunately, I can't share the enthusiasm some people have about this book.
How I feel about this book: "Meh." 2.5 stars/5 stars