If you're on the newer side to chain maille jewelry, you must have this for your library. If you've tried but failed to learn European 4-in-1 weaves this book will show you how it's done. Best Euro tutorial I've ever seen. The cost of the book will save you hours and hours of frustration and scrapped materials. The ARs --- especially for the Japanese weaves are spot-on. Again, saving you time and money on futile attempts and using an amateur's measurements instead of a pro's. Buy this for your library. You won't regret it! The pieces in this book are flat out FANTASTIC... their seemingly complicated designs broken down into step by step instructions with great visuals.