I have several books by Mary Norwak, and I'd recommend any/all of them. She's written a couple in conjunction with a gardener called Keith Mossman which are very good (written in the 70's - long before Delia & Gay Search got together!), and all of her books with 'Farmhouse' in the title are worth having! If you put "Norwak" in a search on Amazon or GreenMetropolis you get a good list.
Amazon.co.uk: The Book of Preserves : Jams, Chutneys, Pickles, Jellies: Books: Mary Norwak Book of Preserves : Jams, Chutneys, Pickles, Jellies