book shop › Let It Rot! the Gardener's Guide to Composting (Down-to-Earth Book) by Stu Campbell Let It Rot! the Gardener's Guide to Composting (Down-to-Earth Book) by Stu Campbell $8.00 Knopf, 1989. Knopf, 1989. 642 pp. Add To Cart Added! Knopf, 1989. Knopf, 1989. 642 pp.