I first discovered Persephone Books last year, and I visited their shop in Lamb's Conduit Street, London shortly afterwards. It is a beautiful small space, a little away from the beaten track, with rows of elegant pearl grey spines of books written by lesser known or forgotten female authors. Each book has a 'fabric' endpaper at the front and back, using beautiful period textiles, many of which were designed by anonymous women designers.
This diary caught my eye recently. The Persephone Ninety (so called because the company now has 90 endpapers in various patterns). It costs £10, or three for £27, plus post and packing from http://www.persephonebooks.co.uk/ You can find the shop at 59 Lamb's Conduit Street, London WC1N 3NB.