Dan Pearson is one of the finest of all British garden designers, blessed with sensitivity, a wonderful eye, deep plant knowledge and a willingness to experiment. In Tokachi Millennium Forest: Pioneering a New Way of Gardening with Nature (Filbert, £40) he describes how a 400-hectare parcel of agricultural land and forest in the shadow of the Hidaka Mountains on Hokkaido has been returned to an augmented natural landscape, thanks to a newspaper magnate, Mitsushige Hayashi, with deep pockets and vaulting ambition, who bought it 30 years ago.