I feel that perhaps an analysis of one of these mooks is long in coming. With the new free online OCR, I can finally translate these books a little better. Japanese character recognition has been very elusive up until now.
This is a sewing pattern book/magazine (mook) that is published by Boutique SHA (They have a blog in English!). This is the same publishing house that released the earlier versions of these books called Gosu Rori, but have since cleaned up their format to make a nice layout that’s much less busy than originally presented.