Volume 4 adds to the skills and knowledge gained from Volumes 1, 2 and 3, and wraps up the square patterns section of this series with two challenging patterns (hakkaku tsunagi and shokko).Following on from the square patterns, Volume 4 introduces angled cuts and joints, and gives detailed step-by-step instructions on making the diamond kumiko arrangement with the single diamond hishi-gata arrangement (hitoe-bishi). It then moves on to the mitsu-kude three-way joint and the fascinating hexagonal patterns, and this is where the true fun begins.Three patterns (asa-no-ha, kawari asa-no-ha and futae asa-no-ha) are featured as an introduction to the wonderful and intricate world of the hexagonal patterns.From calculating pattern dimensions through to listing the most efficient sequence for cutting and assembling the kumiko, everything you need to know to make these attractive and traditional patterns is explained in detail with 130 photographs and line and dimensional drawings to complement and reinforce the instructions.Detailed dimensional diagrams are provided for all jigs used in making the patterns in this book.A new and challenging journey begins.Please note that Volume 4 consists of sections of Book 2 and Book 3 from my Shoji and Kumiko Design paperback series. It doesn't contain any new information.