I've made quite a few stab bound books previously but it was good to pick up a few extra tips/ideas from Ido.  The larger book is A3 with 280gsm mixed media pages and vellum at the start and end.  Soft covers wrapped in Lokta paper, stitched with red sashiko thread.  The smaller book has hinged hard covers wrapped in white imitlin paper and is made from A4 180gsm cartridge paper.  Also stitched with red sashiko thread.