Peter went into publishing on the design side and started his own company in 1974 with a partner. Dorling Kindersley became a highly successful publishing company and it was finally sold in 2000 to Pearson PLC - owners of Penguin. Peter and his wife Juliet had bought Sheepdrove Farmhouse in 1970 and they bought an additional 2250 acres of land which they now run as a successful organic farm and centre. Their aim is to make the land serve both people and nature.